Railway Signaling | N

NOTE:

Although all of these digitized articles are 60 or more years old, and likely have minimal commercial value today, the reader should bear in mind that material dated after 1923 remains under copyright by Simmons-Boardman Publishing.

These articles and the information contained therein may be freely reproduced or used in printed or electronic form for non-commercial or educational purposes, provided the copyright holder and original author (if known) are acknowledged, and provided that such publication also refers readers to the original document on this site.

Simply making interesting material available to those who share my interest in the railway signal systems of the past has been my sole objective in this long project.

Learn more about this collection.

N. Dupo, IL 1

1964	News briefs. 1964-08 811.5 KB

N. Slidell, LA 1

1947	Railroads Request Relief from the ICC Signal Order 365.7 KB

Nachod & United States Signal 1

1937	New Devices- March 1937 18.1 MB

Nachod Signal 3

1911	Automatic Block Signal System for Electric Railways 4.9 MB
1911	Contact Signals for Electric Railways 2.8 MB
1940	Make-Up-Time Chart 813.1 KB

Nachod, Carl P. 1

1911	Contact Signals for Electric Railways 2.8 MB

Nachusa, IL 1

1950	Longest Continuous Double-Track CTC Is on North Western 5.1 MB

Nadeau, CA 1

1935	Automatic Interlocking Involves Highway Crossing Signals 3.4 MB

Nagoya, Japan 1

1964	Eight cities test automatic train operation 1.1 MB

Nahant, IA 1

1965	Midwest RRs fight the weather 914.4 KB

Nakina, Ontario 3

1959	News briefs. 1959-05 506.5 KB
1960	News briefs. 1960-01 1.1 MB
1959	Pushbutton console for CTC 785.3 KB

Naperville, IL 1

1946	Burlington Tests Show Signals Adequate 1.3 MB

Napier, MO 3

1960	News briefs. 1960-02 995.4 KB
1922	News of the Month. 1922-06 516.2 KB
1922	News of the Month. 1922-07 346.9 KB

Nashua, NH 2

1951	CTC on Single Track Permits Removal of Second Main on 22.4 Miles on Boston & Maine 924.4 KB
1951	Double Track to Single With CTC 197.9 KB

Nashville, Chattanooga & St. Louis 28

1950	Big NX Interlocking at Atlanta 6.3 MB
1930	Centralized Traffic Control Indications 1.1 MB
1947	Choice of Interlocking Control Machines 266.5 KB
1928	Educational Efforts Lead to Better Signal Performance 511.9 KB
1915	Electric Interlocking at Aulon, Tennessee 882.6 KB
1944	Emergency Release for Switch Lock 1.3 MB
1931	Fight for Your Job 3.0 MB
1927	Is Approach Lighting of Signals Really Economical? 1.2 MB
1925	Marker Lights on Single Track Automatic Signals 684.0 KB
1957	More automation for signaling in 1957 1.2 MB
1927	Multiplicity of Circuits for Operating Call-on Arms 1.5 MB
1928	NC&StL Completes Signaling from Nashville to Atlanta, 288 Miles 3.3 MB
1947	Railroads Request Relief from the ICC Signal Order 365.7 KB
1930	Report of Committee I – Economics of Signaling 2.5 MB
1929	Secure New Ordinances for Changes in Crossing Protection 691.4 KB
1927	Several Effective Trap Circuit Schemes 1.4 MB
1927	Should Track Circuit Polarities be Staggered? 1.5 MB
1930	Signal Indications Direct Trains on the Paducah & Illinois 5.0 MB
1917	Signal Protection for Washouts 264.6 KB
1926	The Direction of Train Movements by Signal Indication Without Written Train Orders 829.5 KB
1930	Time-Table Schedules and Signal Indications 1.1 MB
1932	Track Capacity 2.7 MB
1927	Train Operation Without Written Train Orders 3.3 MB
1928	Train Signs or Indicators 468.2 KB
1955	What CTC did for the Dixie Line 889.8 KB
1920	What Scheme of Signaling is Most Desirable? 6.8 MB
1929	Where Should Grade Signals Be Installed? 1.2 MB
1928	Why Markers for Automatic Signals? 494.6 KB

Nashville, TN 3

1947	CTC Down by the Ohio 2.7 MB
1928	NC&StL Completes Signaling from Nashville to Atlanta, 288 Miles 3.3 MB
1960	Signal construction steady in 1959 385.2 KB

National Bureau of Standards 1

1937	Selection of Colors for Signal Lights 1.3 MB

National of Mexico 2

1950	Instrument Case Platforms 3.7 MB
1962	News briefs. 1962-03 1.1 MB

National Recovery Administration Act 1

1936	$500,000 Crossing Protection Program of Illinois 17.5 MB

Ndola, Rhodesia 1

1965	Rhodesia has 1215 miles of CTC 949.2 KB

Ndola, Zimbabwe 1

1965	Rhodesia has 1215 miles of CTC 949.2 KB

Needmore, OH 1

1954	CTC Moves Heavy Trains 4.1 MB

Nelson, British Columbia 1

1947	Canadian Pacific Installs Absolute Permissive Block 774.8 KB

Nelson, IL 3

1947	Annual Review and Outlook 404.7 KB
1950	Longest Continuous Double-Track CTC Is on North Western 5.1 MB
1931	Remotely-Controlled Interlocking Solves Problem on C&NW 1.9 MB

Neoga, IL 1

1962	News briefs. 1962-04 1.2 MB

neon gas 1

1924	Neon – A New Gas for Electrical Use 1.8 MB

neon lighting 1

1950	Neon Lighting For Crossing Gate Arms 3.1 MB

Neosho Rapids, KS 2

1922	News of the Month. 1922-09 562.2 KB
1922	Signal Construction on the Santa Fe 797.6 KB

Nerska, IL 1

1922	Signal Construction on the Santa Fe 797.6 KB

Nesquehoning Jct., PA 1

1922	News of the Month. 1922-05 426.4 KB

Netherlands 4

1929	Institution of Signal Engineers Meets in Holland 1.5 MB
1957	Letter to the editor: signal checking circuit used in the Netherlands 225.9 KB
1951	New Interlocking in Holland 1.0 MB
1957	Track circuit developments in Europe 234.8 KB

Netherlands Railways 2

1957	Letter to the editor: signal checking circuit used in the Netherlands 225.9 KB
1961	News briefs. 1961-09 886.8 KB

Neva, KS 1

1922	Signal Construction on the Santa Fe 797.6 KB

Nevada, MO 1

1947	Railroads Request Relief from the ICC Signal Order 365.7 KB

New Albany, IN 1

1945	Monon Remote Control Signaling Saves Train Time 3.5 MB

New Boston, MO 1

1922	Signal Construction on the Santa Fe 797.6 KB

New Britain, CT 1

1922	Flashlight Crossing Signal 280.8 KB

New Buffalo, MI 1

1922	News of the Month. 1922-10 368.4 KB

New Butler, WI 1

1926	Electric Plant Replaces Three Mechanical Interlockings 3.0 MB

New Castle Jct., PA 1

1935	Centralized Traffic Control Installed on the Pittsburgh & Lake Erie 12.9 MB

New Castle, PA 1

1951	P&LE Rebuilds Interlocking 957.2 KB

New Delhi, India 1

1951	Extension of Color-Light Signaling on the Bombay, Baroda & Central India Railway 524.0 KB

new developments 1

1950	New Developments 16.9 MB

New Franklin, MO 1

1938	AC Primary on the Katy 442.5 KB

New Haven, CT 7

1948	Car Numbers “Grabbed” by Voice Recorder 783.1 KB
1915	Extension of New Haven signals 684.8 KB
1955	Much is new in signaling for 1955 826.7 KB
1956	New Haven Consolidates Control of Nine Interlocking Layouts 8.3 MB
1960	News briefs. 1960-07 845.4 KB
1916	Reconstruction of New Haven Signals 315.5 KB
1922	Work in Signal Field Shows Gain Over 1920 784.5 KB

New Haven, IN 3

1947	Annual Review and Outlook 404.7 KB
1950	CTC on the Wabash 2.6 MB
1965	News briefs. 1965-09 381.8 KB

New Orleans & Northeastern 1

1960	News briefs. 1960-11 875.5 KB

New Orleans Public Belt 2

1937	Interlocking and Signaling For New Bridge at New Orleans 5.9 MB
1936	New Electric Interlocking and Signaling at the Mississippi River Bridge at New Orleans 7.9 MB

New Orleans, LA 9

1954	IC Combines Interlockings 1.5 MB
1961	IC Puts CTC Through Swamp 1.6 MB
1947	Illinois Central Honors Radio “Hams” for Emergency Services 278.0 KB
1937	Interlocking and Signaling For New Bridge at New Orleans 5.9 MB
1936	New Electric Interlocking and Signaling at the Mississippi River Bridge at New Orleans 7.9 MB
1954	New Orleans Passenger Terminal 4.7 MB
1962	News briefs. 1962-05 826.8 KB
1965	News briefs. 1965-10 1.1 MB
1947	Railroads Request Relief from the ICC Signal Order 365.7 KB

New Orleans, Texas & Mexico 1

1947	Territories Involved in the ICC Signaling Order 388.2 KB

New Paris, OH 2

1929	Pennsylvania Installs APB Signaling on 86 Miles 3.7 MB
1955	Pennsylvania installs wayside equipment for cab signaling 745.7 KB

New River Jct., OH 1

1960	News briefs. 1960-09 756.9 KB

New Rochelle, NY 4

1948	All-Relay Interlocking on New Haven 1.2 MB
1913	New Haven Concrete Interlocking Towers 2.3 MB
1916	Reconstruction of New Haven Signals 315.5 KB
1956	Train Runs by Wayside Control 3.3 MB

New Rockford, MN 1

1931	GN Asks to Remove Train Control 215.6 KB

New Rockford, ND 1

1963	News briefs. 1963-06 961.3 KB

New Smyrna Beach, FL 4

1962	News briefs. 1962-02 1.4 MB
1963	News briefs. 1963-11 1.4 MB
1964	News briefs. 1964-12 981.5 KB
1965	News briefs. 1965-10 1.1 MB

New South Wales, Australia 1

1922	Single Track Signaling in Australia 527.7 KB

New Utrecht Ave., Brooklyn, NY 1

1960	Subway train is automatic 552.2 KB

New York 3

1911	A Comparison of the Interlocking Laws of the Various States 2.6 MB
1936	Instructions for Crossing Protection in New York 1.8 MB
1937	Rule for Crossing Protection 1.2 MB

New York Board of Transportation 1

1949	Signaling and Interlocking On New Line of New York Subways 6.5 MB

New York Central 231

1951	"Central" Increases Safety at Highway Crossings in Dayton 1.0 MB
1916	A New York Central Plant in Chicago 590.7 KB
1943	A Review of 1942 2.9 MB
1921	Accident on Porter, Indiana Interlocking Plant 1.1 MB
1935	Aerial Cable Versus Open Line 3.9 MB
1936	All-Relay Interlocking On NYC at Syracuse 29.7 MB
1947	Annual Review and Outlook 404.7 KB
1929	Are Automatic Signals on Sidings Justified? 1.6 MB
1933	Are Switch Lamps Needed? 506.3 KB
1924	Automatic Interlocker for a Crossing 3.4 MB
1929	Automatic Interlocker Saves Over 8,000 Train Stops Annually 1.7 MB
1932	Automatic Plant With Derails 2.4 MB
1922	Automatic Train Control in Use On American Railroads 353.7 KB
1935	Avoiding Light-Out Signal Failures 1.2 MB
1951	B&O Installs Modern Interlocking 871.3 KB
1926	B. J Schwendt 438.9 KB
1958	Carrier sends hot box indications to dispatchers' office 810.6 KB
1958	Central opens Young Yard 2.5 MB
1930	Centralized Traffic Control Indications 1.1 MB
1931	Centralized vs. Remote Control 1.2 MB
1937	Changes on the New York Central Lines 2.3 MB
1927	Color Light Automatic Block Signals Installed on the New York Central 3.6 MB
1928	Color Light Train Order Signals Are Effective 2.9 MB
1956	Conelrad – A Civil Defense Measure … How Some Railroads are Participating 4.1 MB
1928	Continued Activity and Development in Signaling 1.1 MB
1959	CTC discussed at AIEE meeting 445.2 KB
1939	CTC on Multiple Track 1.8 MB
1947	DC Track Circuit Measurements 291.6 KB
1935	DC Track Circuits 963.2 KB
1936	Demands for Modern Signaling 12.1 MB
1929	Detector Locking Should Not Have an Emergency Release 1.3 MB
1950	Differentiation Between Signals 1.1 MB
1926	Directing Trains By Signals 1.9 MB
1928	Dispatcher Signaling System Operates Through Sleet Storm 1.1 MB
1935	Disposition of Mechanical Interlocking Equipment 1.3 MB
1946	Drawbridge Interlocking on the New York Central 3.1 MB
1925	Duplex Signaling of Fourth Track Solves Grand Central Problem 1.1 MB
1930	Dwarf Signal Aspects 582.4 KB
1962	Dynamic Indication 211.7 KB
1933	Economics of Modern Signaling 2.1 MB
1960	Electric eye catches high loads on NYC 352.5 KB
1928	Electric Interlocker and Switch Control Speeds Up Yard Operation 2.4 MB
1928	Electric Plant on NYC Replaces Two Mechanical Plants 3.2 MB
1962	Electric Switch Lamp Lighting Helps Reduce Operating Expense 661.7 KB
1928	Elimination of Derails 796.4 KB
1935	Facing Point Locks on Switches 3.2 MB
1921	Fire Threatened Tie Up At Grand Central Terminal 1.5 MB
1933	Four-Position Dwarfs 1.5 MB
1950	Gate-Arm Stripe Colors 3.4 MB
1927	Half Interlocker on DT&I 565.6 KB
1943	Herbert S. Balliet obituary 614.8 KB
1947	Highway Crossing Protection Installed by Several Railroads in Gary, IndianaR 1.2 MB
1927	How Long Is a Track Circuit? 593.6 KB
1927	How Many Signal Aspects and Indications? 2.4 MB
1959	How retarder controls function at Young Yard on the NYC 978.1 KB
1946	ICC 50-MPH Signal Hearing 6.9 MB
1939	ICC Permits Removal of Derails 1.1 MB
1957	ICC Reports on NYC wreck 205.5 KB
1932	Improper Forestalling 669.7 KB
1935	Installation of Bond Wires 4.0 MB
1936	Instructions for Crossing Protection in New York 1.8 MB
1950	Instrument Case Platforms 3.7 MB
1927	Is Approach Lighting of Signals Really Economical? 1.2 MB
1937	J. C. Mock Retires 1.4 MB
1922	Labor Board Decides that IBEW Has No Jurisdiction of Signal Men 374.5 KB
1947	Large All-Relay Interlocking on the New York Central 2.5 MB
1925	Light Signals, Color, Position, or Color-Position 1.5 MB
1931	Locks for Mechanical Levers 991.9 KB
1936	Lost Motion in Locking 3.0 MB
1949	Main Line Crossovers 2.4 MB
1936	Maintainers' Blueprint Plans 4.2 MB
1930	Maintainers' Territories 1.3 MB
1927	Maintenance of Interlockings in the Grand Central Terminal 2.8 MB
1917	Maintenance of Mechanical Interlocking 595.4 KB
1929	Marker Lights on Automatic Signals 994.2 KB
1927	Marking Signals When Out of Service 1.1 MB
1941	Modern Entrance-Exit Interlocking Replaces Mechanical Plant On Indiana Harbor Belt 6.9 MB
1943	Modernization of Automatic Signaling On the New York Central 9.8 MB
1966	Modular signal design is here 1.7 MB
1957	More automation for signaling in 1957 1.2 MB
1935	Multiple Aspect Signaling 3.3 MB
1935	Multiple-Block Signaling 7.0 MB
1911	New 400-Lever Interlocking Machine 3.7 MB
1955	New Cleveland Transit System 917.8 KB
1930	New Electric Interlocking 3.2 MB
1947	New Interlocking at Bellevue, Ohio Protects Crossings of Four Railroads 997.9 KB
1951	New NYC Interlocking Controlled by Synchrostep 1.2 MB
1932	New Type of Lead-Out 924.4 KB
1916	New York Central and Pennsylvania Change Colors 220.3 KB
1935	New York Central Extends South Bend Interlocking 6.0 MB
1944	New York Central Installs Coded Track Circuits 3.9 MB
1937	New York Central Installs First Button-Control Route Interlocking 9.0 MB
1949	New York Central Installs Interlocking 3.3 MB
1944	New York Central Installs NX Interlocking at Utica 5.7 MB
1936	New York Central Interlocking at Syracuse 15.9 MB
1944	New York Central Modernizes an Interlocking 5.0 MB
1931	New York Central Re-Signals Track Entering Grand Central Terminal 4.0 MB
1955	New York Central’s CTC – It’s Four Tracks to Two 4.1 MB
1955	News briefs. 1955-08 830.4 KB
1958	News briefs. 1958-01 1.8 MB
1959	News briefs. 1959-05 506.5 KB
1960	News briefs. 1960-02 995.4 KB
1960	News briefs. 1960-03 1.9 MB
1960	News briefs. 1960-05 1.0 MB
1960	News briefs. 1960-06 1.2 MB
1960	News briefs. 1960-07 845.4 KB
1960	News briefs. 1960-09 756.9 KB
1960	News briefs. 1960-10 1.8 MB
1960	News briefs. 1960-11 875.5 KB
1961	News briefs. 1961-01 761.9 KB
1961	News briefs. 1961-03 1.0 MB
1961	News briefs. 1961-06 725.8 KB
1961	News briefs. 1961-07 648.9 KB
1961	News briefs. 1961-10 1.0 MB
1962	News briefs. 1962-02 1.4 MB
1962	News briefs. 1962-03 1.1 MB
1962	News briefs. 1962-04 1.2 MB
1962	News briefs. 1962-07 494.2 KB
1962	News briefs. 1962-09 838.3 KB
1962	News briefs. 1962-10 461.7 KB
1962	News briefs. 1962-11 468.1 KB
1963	News briefs. 1963-01 951.3 KB
1963	News briefs. 1963-03 790.6 KB
1963	News briefs. 1963-04 896.6 KB
1963	News briefs. 1963-05 720.2 KB
1964	News briefs. 1964-04 1.3 MB
1964	News briefs. 1964-05 1.0 MB
1964	News briefs. 1964-08 811.5 KB
1964	News briefs. 1964-09 879.4 KB
1964	News briefs. 1964-10 768.6 KB
1965	News briefs. 1965-01 2.0 MB
1965	News briefs. 1965-02 1.9 MB
1965	News briefs. 1965-06 1.2 MB
1965	News briefs. 1965-08 749.4 KB
1965	News briefs. 1965-10 1.1 MB
1965	News briefs. 1965-11 1.2 MB
1966	News briefs. 1966-01 1.4 MB
1922	News of the Month. 1922-03 314.9 KB
1922	News of the Month. 1922-04 613.8 KB
1922	News of the Month. 1922-06 516.2 KB
1922	News of the Month. 1922-08 394.0 KB
1922	News of the Month. 1922-11 361.5 KB
1922	News of the Month. 1922-12 388.1 KB
1956	No Waiting for Reservations 6.3 MB
1938	Non-Stop Permissive Automatic Signals 1.4 MB
1928	Normal-Stop Versus Normal-Clear Signaling 529.4 KB
1954	NYC Combines Interlockings 2.4 MB
1929	NYC Expands Electric Plant By Adding 48 Levers 2.7 MB
1927	NYC First to Install Complete Train Dispatching System 8.0 MB
1950	NYC Installs Big NX Plant at Fostoria, Ohio 3.9 MB
1930	NYC Makes Rapid Cut-Over on Large Plant at Cleveland 1.3 MB
1936	NYC Modernizes Electric Interlocking 9.0 MB
1964	NYC Moves CTC Point of Control 1.2 MB
1950	Obituary: B. J. Schwendt 966.4 KB
1927	Organization of Railroad Signal Departments 3.9 MB
1926	Our Problems in the Economics of Railway Signaling 1.4 MB
1940	Personal: Changes on the New York Central 2.2 MB
1926	Plans to Simplify Signal Aspects 615.0 KB
1931	Point Detector or Switch Circuit Controller for CTC Switches? 835.1 KB
1922	Position Color Light Signal 612.9 KB
1931	Precision-Base Lamps 1.4 MB
1933	Preventing Lamp Failures 1.2 MB
1939	Problems of Four-Indication Signaling 1.6 MB
1931	Proceed Aspects for Isolated Home Signals 1.4 MB
1943	Progress in the Use of Coded Track Circuits 1.6 MB
1921	Proposed Modification of Stop-and-Proceed Rule 1.4 MB
1931	Protecting CTC Switches 2.9 MB
1927	Protecting Main Line Switches 486.2 KB
1935	Purple Signal Glasses 3.3 MB
1957	Pushbutton CTC Machine on NYC Is First of Its Kind 3.3 MB
1922	Railroads Argue Against Automatic Stops at ICC Hearing 436.8 KB
1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB
1949	Raising Poles 1.9 MB
1918	Record Snowstorms Paralyze Transportation 424.7 KB
1933	Reducing Unnecessary Train Stops 2.5 MB
1953	Remote Control Interlockings Improve Terminal Operation 551.4 KB
1947	Remote Control on Baltimore & Ohio 595.8 KB
1930	Remotely Controlled Signals Replace Manual Block Station on New York Central 1.2 MB
1930	Report of Committee I – Economics of Signaling 2.5 MB
1937	Report of Committee X – Signaling Practice 2.9 MB
1931	Results of Centralized Control on NYC 703.8 KB
1928	Rock Island Completes 33-Lever Electric Interlocker 2.8 MB
1937	Route Control Interlocking – A New Signaling Development 2.9 MB
1937	Route Locking Circuits 1.9 MB
1958	RS&C 50th anniversary: Railroad communications ... from Morse to microwave 3.3 MB
1958	RS&C 50th anniversary: Signaling ... manual to automatic 2.0 MB
1935	Safety of High Speed Trains 5.2 MB
1926	Semaphore or Light Signals? 1.8 MB
1927	Should Track Circuit Polarities be Staggered? 1.5 MB
1929	Signal Aspects at End of Double Track 514.3 KB
1928	Signal Aspects for "Head-In" Indication at Passing Track 1.0 MB
1930	Signal Aspects for a Four Block System 2.8 MB
1926	Signal Business Is Good Especially For Single Track 382.3 KB
1960	Signal construction steady in 1959 385.2 KB
1935	Signal Night for New York Railroad Club 1.1 MB
1938	Signaling for Higher Train Speeds 3.9 MB
1959	Signaling moderate during '58 528.6 KB
1958	Signaling to cut expenses in '58 411.4 KB
1925	Signals and the Saving of Fuel 2.4 MB
1937	Signals in Advance of Switches 1.1 MB
1934	Simplified Interlocking Speeds Train Operation 1.9 MB
1941	Simplified Signaling 426.9 KB
1951	Single-Track With CTC Handles 40 Trains Daily 530.8 KB
1936	Slide Detector Fences 4.3 MB
1926	Slow Speed vs. Restricted Speed 457.9 KB
1943	Some Benefits of the War 780.5 KB
1939	Speeding Up Train Operation With Signaling 4.5 MB
1961	Survey Tells How Railroads Use Hotbox Detectors 1.8 MB
1937	Switch Protection in Automatic Territory 3.0 MB
1950	Temporary Change of Signal Controls 2.2 MB
1933	Testing Lamps on Approach Control 698.7 KB
1934	The Application of Derails 1.3 MB
1932	The Light-Traffic Crossing 1.1 MB
1931	The Mott Haven Interlocking 3.7 MB
1934	The Safety Feature of Signals 456.5 KB
1922	The Sprague Train Control System 609.3 KB
1925	The Train Control Situation 853.0 KB
1956	Three Signal Shops into One 7.0 MB
1930	Time-Table Schedules and Signal Indications 1.1 MB
1932	Track Capacity 2.7 MB
1932	Track Model Lights 444.9 KB
1926	Train Control Progress in 1925 3.1 MB
1926	Training of New Levermen 654.5 KB
1937	Unusual Signaling Trouble 2.2 MB
1946	War-Time Replacement of Interlocking on Pere Marquette 3.4 MB
1937	What is in Store for the Signal Field? 1.8 MB
1936	What Is the Capacity of a Single-Track Line? 2.0 MB
1958	What's the answer? Approach lighting 237.1 KB
1951	What's the Answer? Stop Signals in CTC 274.3 KB
1957	Where Two Tracks Do the Work of Four 3.2 MB
1922	Work in Signal Field Shows Gain Over 1920 784.5 KB

New York City Transit 27

1963	Automated Rail Transit Discussed by IEEE-ASME 315.3 KB
1960	Automation on the Russian railroads 695.9 KB
1957	More automation for signaling in 1957 1.2 MB
1955	Much is new in signaling for 1955 826.7 KB
1960	New York City Transit to spend $23 million for signals 189.2 KB
1960	News briefs. 1960-03 1.9 MB
1960	News briefs. 1960-08 603.8 KB
1961	News briefs. 1961-05 1.1 MB
1961	News briefs. 1961-07 648.9 KB
1961	News briefs. 1961-10 1.0 MB
1961	News briefs. 1961-11 1.3 MB
1963	News briefs. 1963-01 951.3 KB
1963	News briefs. 1963-12 429.2 KB
1964	News briefs. 1964-08 811.5 KB
1964	News briefs. 1964-11 797.3 KB
1965	News briefs. 1965-08 749.4 KB
1960	Railroads fit automation 186.8 KB
1958	RS&C 50th anniversary: Signaling ... manual to automatic 2.0 MB
1960	Signal construction steady in 1959 385.2 KB
1960	Signaling enters automation 630.7 KB
1959	Signaling moderate during '58 528.6 KB
1959	Signaling: 1960 225.2 KB
1961	Snow Detectors 231.2 KB
1958	Subway consolidates interlockings 2.2 MB
1960	Subway train is automatic 552.2 KB
1957	What's the answer: Slotting relay? 361.2 KB
1959	What's the answer? Repeater signals 691.6 KB

New York City Transit Authority 5

1962	1962 outlook 3.0 MB
1961	News briefs. 1961-03 1.0 MB
1962	News briefs. 1962-01 986.8 KB
1962	News briefs. 1962-09 838.3 KB
1962	News briefs. 1962-10 461.7 KB

New York Municipal Railway 1

1916	AC Signaling in the Centre Street Loop 924.9 KB

New York Rapid Transit 3

1928	Are Call-On Signals Safe? 545.6 KB
1937	Drawings of Relay and Junction Box Details 1.0 MB
1936	Testing Automatic Interlockings 3.5 MB

New York State Railways 1

1911	Train Dispatching on Interurban Railways 2.0 MB

New York subway 2

1950	Route Type Interlocking on New York Subway 8.7 MB
1935	Signal Night for New York Railroad Club 1.1 MB

New York tunnel 1

1911	Signaling on the New York Tunnel Extension of the Pennsylvania 1.0 MB

New York, Chicago & St. Louis 47

1932	A Detector Bar Fails 1.5 MB
1916	A New York Central Plant in Chicago 590.7 KB
1947	Annual Review and Outlook 404.7 KB
1932	Approach Lighting 534.4 KB
1930	Approach-Lighting a Leaving Signal 1.0 MB
1928	Arrangement of Color Light Units 816.2 KB
1950	CTC Installed on 128 Miles of NKP 12.1 MB
1941	DT&I Installs Automatic Interlocking 5.0 MB
1928	Early APB Signaling 408.5 KB
1931	Efficiency Tests 1.9 MB
1932	Electric Interlocking Constructed by the Nickel Plate 1.4 MB
1932	Electric Lock for Spring Switch 1.3 MB
1950	Flashing Signal Aspects 1.1 MB
1937	Gages for Mechanical Locking 2.4 MB
1947	Highway Crossing Protection Installed by Several Railroads in Gary, IndianaR 1.2 MB
1922	ICC Proposes to Order Train Control on 49 Roads 376.4 KB
1933	Leaving Siding Signal 446.3 KB
1929	Mechanical Locking Suggestion 369.2 KB
1955	New Cleveland Transit System 917.8 KB
1947	New Interlocking at Bellevue, Ohio Protects Crossings of Four Railroads 997.9 KB
1943	New York, Chicago & St. Louis Installs Centralized Traffic Control on Busy Sections of Single Track 7.9 MB
1960	News briefs. 1960-02 995.4 KB
1961	News briefs. 1961-11 1.3 MB
1962	News briefs. 1962-02 1.4 MB
1962	News briefs. 1962-04 1.2 MB
1962	News briefs. 1962-06 989.1 KB
1962	News briefs. 1962-11 468.1 KB
1963	News briefs. 1963-03 790.6 KB
1928	Nickel Plate Installs 169 Miles of Color Light Automatics 3.6 MB
1950	NYC Installs Big NX Plant at Fostoria, Ohio 3.9 MB
1956	Photography 1.5 MB
1935	Preventing Unnecessary Operation of Highway-Railroad Crossing Signals 4.3 MB
1922	Railroads Argue Against Automatic Stops at ICC Hearing 436.8 KB
1937	Route Locking Circuits 1.9 MB
1963	S&C Role Is Basic To Bison Yard 3.0 MB
1935	Signaling at Spring Switches 2.6 MB
1933	Signaling Construction During 1932 632.3 KB
1951	Street and Railroad Crossing Protection Combined 529.9 KB
1947	Territories Involved in the ICC Signaling Order 388.2 KB
1935	Traffic Type Signals for Protection of Highway-Railroad Crossings 2.5 MB
1926	Train Control Progress in 1925 3.1 MB
1949	Train Operation By Signal Inidication Used Extensively on the Nickel Plate 6.1 MB
1952	Train Time Saved By New Interlocking and Automatic Protection at 15 Street Crossings in Lima, Ohio 4.4 MB
1923	Train-Order Signals at Interlockers 3.6 MB
1940	Trap Circuit 872.0 KB
1956	Walkie-Talkies 1.5 MB
1929	Where Should Grade Signals Be Installed? 1.2 MB

New York, New Haven & Hartford 45

1935	"Chattering" Slot Arms 2.3 MB
1943	A Review of 1942 2.9 MB
1948	All-Relay Interlocking on New Haven 1.2 MB
1950	Approach Distances and Times 5.5 MB
1922	Automatic Train Control in Use On American Railroads 353.7 KB
1936	Bad Collisions on Best Railroads 2.5 MB
1936	Boston & Maine Flooded Signaling Rehabilitated 8.3 MB
1948	Car Numbers “Grabbed” by Voice Recorder 783.1 KB
1935	Checking Rail Ends on Drawbridges 2.5 MB
1932	Crossing Signal History 941.6 KB
1925	Duplex Signaling of Fourth Track Solves Grand Central Problem 1.1 MB
1930	Dwarf Signal Aspects 582.4 KB
1939	Electric Interlocking on the New Haven 2.1 MB
1915	Extension of New Haven signals 684.8 KB
1922	Flashlight Crossing Signal 280.8 KB
1927	How Long Is a Track Circuit? 593.6 KB
1922	ICC Proposes to Order Train Control on 49 Roads 376.4 KB
1936	Importance of Warning Whistle 6.8 MB
1958	Improved signaling results from grade elimination 883.1 KB
1934	Lamp Ratings for Flashing Lights 695.8 KB
1955	Much is new in signaling for 1955 826.7 KB
1935	Multiple-Block Signaling 7.0 MB
1944	New All-Relay Interlocking at Providence, RI on the New Haven 5.8 MB
1913	New Haven Concrete Interlocking Towers 2.3 MB
1956	New Haven Consolidates Control of Nine Interlocking Layouts 8.3 MB
1943	New Haven Installs Five-Aspect Signaling Controlled By Coded Track Circuits 7.4 MB
1960	News briefs. 1960-07 845.4 KB
1956	No Waiting for Reservations 6.3 MB
1931	Proceed Aspects for Isolated Home Signals 1.4 MB
1960	Railroads fit automation 186.8 KB
1916	Reconstruction of New Haven Signals 315.5 KB
1926	Recurrent Acknowledgment at Stop Signals 961.9 KB
1937	Rehabilitating Flooded Signaling 1.4 MB
1958	Remote control saves money 868.5 KB
1928	Signal and Train Control Hearing Ends 2.0 MB
1924	Signal Development in Connection With Single Phase Propulsion 5.1 MB
1950	Stopping Distance on Grades 3.5 MB
1947	The New Haven Installs All-Relay Interlocking at Providence, RI 1.9 MB
1935	The Railways' Answer to the Demand for Speed 2.8 MB
1925	The Train Control Situation 853.0 KB
1926	Train Control Progress in 1925 3.1 MB
1956	Train Runs by Wayside Control 3.3 MB
1909	Train staff installation on the NYNH&H 1.0 MB
1946	W. M. Post retires 932.3 KB
1922	Work in Signal Field Shows Gain Over 1920 784.5 KB

New York, NY 40

1925	Automatic Interlocking of a Double Track Junction on BMT Lines 1.8 MB
1935	Automatic Interlocking on the Brooklyn-Manhattan Transit 5.4 MB
1923	BRT Automatic Interlocking 1.9 MB
1924	Drafting Practice on Interborough 2.9 MB
1925	Duplex Signaling of Fourth Track Solves Grand Central Problem 1.1 MB
1964	Eight cities test automatic train operation 1.1 MB
1921	Fire Threatened Tie Up At Grand Central Terminal 1.5 MB
1940	Interlocking on the Hudson & Manhattan 6.8 MB
1915	Jersey City Terminal Interlocking 1.1 MB
1927	Maintenance of Interlockings in the Grand Central Terminal 2.8 MB
1916	Methods of Locating Automatic Signals 428.3 KB
1957	More automation for signaling in 1957 1.2 MB
1955	Much is new in signaling for 1955 826.7 KB
1935	Multiple-Block Signaling 7.0 MB
1911	New 400-Lever Interlocking Machine 3.7 MB
1932	New Eighth Avenue Subway- Signaling and Interlocking in New York City 6.4 MB
1931	New York Central Re-Signals Track Entering Grand Central Terminal 4.0 MB
1924	New York Commission Recalls Order 3.3 MB
1917	New York Elevated Signal Improvements 418.8 KB
1962	News briefs. 1962-02 1.4 MB
1964	News briefs. 1964-08 811.5 KB
1965	News briefs. 1965-02 1.9 MB
1936	NYC Modernizes Electric Interlocking 9.0 MB
1938	Pennsylvania Electrification Signaling 5.3 MB
1911	Recent Improvements in Signaling 856.5 KB
1946	Reverse Running on the Pennsylvania 2.8 MB
1950	Route Type Interlocking on New York Subway 8.7 MB
1935	Safety of High Speed Trains 5.2 MB
1940	Signal Lens Cleaner 1.1 MB
1949	Signaling and Interlocking On New Line of New York Subways 6.5 MB
1935	Signaling for Higher Train Speeds 3.0 MB
1934	Signaling of the New York Subways 3.9 MB
1911	Signaling on the New York Tunnel Extension of the Pennsylvania 1.0 MB
1933	Signaling on the Pennsylvania's Electrified Line 3.6 MB
1939	Signaling the Pennsylvania to New York World's Fair 4.2 MB
1909	Solenoid Signals 2.1 MB
1958	Subway consolidates interlockings 2.2 MB
1931	The Mott Haven Interlocking 3.7 MB
1911	The Newest Terminal Interlocking 611.9 KB
1922	Work in Signal Field Shows Gain Over 1920 784.5 KB

New York, Ontario & Western 5

1911	A Summary of Signaling Practice 3.6 MB
1937	Approach Locking on Dwarf Signals 1.2 MB
1940	CTC on the New York, Ontario & Western 8.2 MB
1936	Instructions for Crossing Protection in New York 1.8 MB
1940	Single-Track Signaling 2.5 MB

New York, Susquehanna & Western 1

1959	Erie consolidates interlockings 440.6 KB

New York, Westchester & Boston 3

1912	The New York, Westchester & Boston Railway (1912-08) 4.1 MB
1912	The New York, Westchester & Boston Railway (1912-10) 4.7 MB
1912	The New York, Westchester & Boston Railway (1912-12) 4.8 MB

New Zealand 3

1922	News of the Month. 1922-10 368.4 KB
1922	News of the Month. 1922-11 361.5 KB
1922	Single Track Signaling in Australia 527.7 KB

New Zealand Goernment Railways 1

1922	Single Track Signaling in Australia 527.7 KB

Newark, NJ 14

1915	Jersey City Terminal Interlocking 1.1 MB
1953	Lackawanna First to Install New Multiplex High Speed Code 4.6 MB
1931	Movable Bridges and Yard Entrance Layouts Controlled from One Cabin 4.5 MB
1955	Much is new in signaling for 1955 826.7 KB
1936	New Electro-Pneumatic Plant On Pennsylvania at Newark 23.9 MB
1960	News briefs. 1960-03 1.9 MB
1962	News briefs. 1962-04 1.2 MB
1964	News briefs. 1964-09 879.4 KB
1964	News briefs. 1964-12 981.5 KB
1922	News of the Month. 1922-07 346.9 KB
1951	Pennsylvania Exhibits Speed Control 512.5 KB
1916	Signaling a New Street Car Terminal 437.5 KB
1922	Signaling Meadows Line of DL&W 7.9 MB
1933	Signaling on the Pennsylvania's Electrified Line 3.6 MB

Newburg, MO 1

1947	Frisco Moves CTC to One Office 481.1 KB

Newburgh Jct., NY 1

1934	New Signaling Increases Track Capacity on the Erie 2.0 MB

Newburyport, MA 1

1959	B&M takes up track and installs traffic control, gates and flashers 735.7 KB

Newcomerstown, OH 1

1960	News briefs. 1960-02 995.4 KB

Newfield, NH 1

1922	News of the Month. 1922-11 361.5 KB

Newhall, IA 1

1927	Comparative Maintenance Costs of Signaling on the CM&StP 2.9 MB

Newkirk, OK 2

1962	News briefs. 1962-09 838.3 KB
1955	Santa Fe installs CTC on single track 610.2 KB

Newport, AR 1

1960	News briefs. 1960-02 995.4 KB

Newport, PA 1

1963	News briefs. 1963-01 951.3 KB

Newport, WA 2

1922	News of the Month. 1922-04 613.8 KB
1922	News of the Month. 1922-06 516.2 KB

news briefs 70

1960	News briefs. 1960-01 1.1 MB
1960	News briefs. 1960-02 995.4 KB
1960	News briefs. 1960-03 1.9 MB
1960	News briefs. 1960-04 896.6 KB
1960	News briefs. 1960-05 1.0 MB
1960	News briefs. 1960-06 1.2 MB
1960	News briefs. 1960-07 845.4 KB
1960	News briefs. 1960-08 603.8 KB
1960	News briefs. 1960-09 756.9 KB
1960	News briefs. 1960-10 1.8 MB
1960	News briefs. 1960-11 875.5 KB
1960	News briefs. 1960-12 566.1 KB
1961	News briefs. 1961-01 761.9 KB
1961	News briefs. 1961-02 1.4 MB
1961	News briefs. 1961-03 1.0 MB
1961	News briefs. 1961-04 1.5 MB
1961	News briefs. 1961-05 1.1 MB
1961	News briefs. 1961-06 725.8 KB
1961	News briefs. 1961-07 648.9 KB
1961	News briefs. 1961-08 851.8 KB
1961	News briefs. 1961-09 886.8 KB
1961	News briefs. 1961-10 1.0 MB
1961	News briefs. 1961-11 1.3 MB
1961	News briefs. 1961-12 978.0 KB
1962	News briefs. 1962-01 986.8 KB
1962	News briefs. 1962-02 1.4 MB
1962	News briefs. 1962-03 1.1 MB
1962	News briefs. 1962-04 1.2 MB
1962	News briefs. 1962-05 826.8 KB
1962	News briefs. 1962-06 989.1 KB
1962	News briefs. 1962-07 494.2 KB
1962	News briefs. 1962-08 675.9 KB
1962	News briefs. 1962-09 838.3 KB
1962	News briefs. 1962-10 461.7 KB
1962	News briefs. 1962-11 468.1 KB
1962	News briefs. 1962-12 486.4 KB
1963	News briefs. 1963-01 951.3 KB
1963	News briefs. 1963-02 1.3 MB
1963	News briefs. 1963-03 790.6 KB
1963	News briefs. 1963-04 896.6 KB
1963	News briefs. 1963-05 720.2 KB
1963	News briefs. 1963-06 961.3 KB
1963	News briefs. 1963-07 489.2 KB
1963	News briefs. 1963-08 1.2 MB
1963	News briefs. 1963-10 497.4 KB
1963	News briefs. 1963-11 1.4 MB
1963	News briefs. 1963-12 429.2 KB
1964	News briefs. 1964-01 535.9 KB
1964	News briefs. 1964-02 992.4 KB
1964	News briefs. 1964-04 1.3 MB
1964	News briefs. 1964-05 1.0 MB
1964	News briefs. 1964-06 812.0 KB
1964	News briefs. 1964-07 833.0 KB
1964	News briefs. 1964-08 811.5 KB
1964	News briefs. 1964-09 879.4 KB
1964	News briefs. 1964-10 768.6 KB
1964	News briefs. 1964-11 797.3 KB
1964	News briefs. 1964-12 981.5 KB
1965	News briefs. 1965-01 2.0 MB
1965	News briefs. 1965-02 1.9 MB
1965	News briefs. 1965-03 781.8 KB
1965	News briefs. 1965-04 1.5 MB
1965	News briefs. 1965-05 1.4 MB
1965	News briefs. 1965-06 1.2 MB
1965	News briefs. 1965-07 788.3 KB
1965	News briefs. 1965-08 749.4 KB
1965	News briefs. 1965-09 381.8 KB
1965	News briefs. 1965-10 1.1 MB
1965	News briefs. 1965-11 1.2 MB
1965	News briefs. 1965-12 609.3 KB

news of the month 15

1922	News of the Month. 1922-01 315.5 KB
1922	News of the Month. 1922-02 323.2 KB
1922	News of the Month. 1922-03 314.9 KB
1922	News of the Month. 1922-04 613.8 KB
1922	News of the Month. 1922-05 426.4 KB
1922	News of the Month. 1922-06 516.2 KB
1922	News of the Month. 1922-07 346.9 KB
1922	News of the Month. 1922-08 394.0 KB
1922	News of the Month. 1922-09 562.2 KB
1922	News of the Month. 1922-10 368.4 KB
1922	News of the Month. 1922-11 361.5 KB
1922	News of the Month. 1922-12 388.1 KB
1923	News of the Month. 1923-07 1.9 MB
1923	News of the Month. 1923-10 1.9 MB
1923	News of the Month. 1923-11 1.8 MB

Newton Falls, OH 1

1947	Remote Control on Baltimore & Ohio 595.8 KB

Newton, KS 5

1962	News briefs. 1962-01 986.8 KB
1963	News briefs. 1963-08 1.2 MB
1922	News of the Month. 1922-09 562.2 KB
1947	Railroads Request Relief from the ICC Signal Order 365.7 KB
1922	Signal Construction on the Santa Fe 797.6 KB

Newtown Jct., PA 1

1931	Re-Signaling of the Reading Electrified Territory 778.0 KB

Niagara Falls, NY 1

1937	Illumination as a Type of Crossing Protection 3.0 MB

Niagara Falls, Ontario 1

1931	Michigan Central Makes Extensive Improvements in Signaling System 3.3 MB

Niagara Jct., NY 1

1947	Relay Interlocking on Lehigh Valley 805.7 KB

Niagara Junction 1

1937	Illumination as a Type of Crossing Protection 3.0 MB

Nichols, NY 1

1958	DL&W-Erie joint operation is ready to go 643.6 KB

Nickel Plate 5

1947	Highway Crossing Protection Installed by Several Railroads in Gary, IndianaR 1.2 MB
1955	New Cleveland Transit System 917.8 KB
1960	News briefs. 1960-02 995.4 KB
1961	News briefs. 1961-04 1.5 MB
1951	Street and Railroad Crossing Protection Combined 529.9 KB

nickel plating 1

1935	Nickel Plating of Signal Apparatus 1.1 MB

Niland, CA 2

1957	How long sidings save train time 465.2 KB
1922	Introducing Economies in Signal Operation 298.9 KB

Niles Jct., OH 1

1947	Remote Control on Baltimore & Ohio 595.8 KB

Niles, MI 2

1958	Central opens Young Yard 2.5 MB
1927	Michigan Central Train Control Approved 800.8 KB

Ninth Avenue elevated, New York, NY 1

1917	New York Elevated Signal Improvements 418.8 KB

NJ Cabin, KY 1

1950	Remote Control of Center Sidings On Busy Double-Track Line 3.6 MB

Noble Street, Chicago, IL 3

1911	Interlocking on the North Western Terminal 7.6 MB
1925	Maintenance on C&NW Terminals 12.5 MB
1911	Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB

Noble, IL 1

1922	News of the Month. 1922-02 323.2 KB

Noble, S. E. 4

1928	Changes on the C&NW 978.4 KB
1935	New Signaling on the Route of the C&NW "400" 9.6 MB
1937	Personal: C&NW 1.3 MB
1953	Stanley E. Noble Retires 703.8 KB

Nodaway, MO 1

1961	Should Sidings Have Circuits? 347.6 KB

Nolan, ND 3

1947	ICC Holds Signal Hearing 507.5 KB
1964	News briefs. 1964-04 1.3 MB
1947	Railroads Request Relief from the ICC Signal Order 365.7 KB

Noland, ND 1

1964	News briefs. 1964-02 992.4 KB

nomenclature 1

1911	Symbols and Nomenclature for Written Circuits 2.3 MB

non-interlocked railroad crossings 2

1921	Non-Interlocking Non-Stop Grade Crossings 1.6 MB
1937	Railroad Grade Crossing Gates 2.2 MB

Norden, CA 1

1935	Electric Interlocking in Snow Sheds on the Southern Pacific 8.2 MB

Norfolk & Western 74

1947	107 Miles of CTC on the N&W 2.3 MB
1947	All-Relay Interlocking Replaces Mechanical Plant 1.5 MB
1947	Annual Review and Outlook 404.7 KB
1949	Applications to ICC 1949-11 926.1 KB
1928	Are Call-On Signals Safe? 1.2 MB
1951	B&O Installs Modern Interlocking 871.3 KB
1951	Both Tracks Both Ways on Norfolk & Western 623.5 KB
1931	Call-on Route Control 1.4 MB
1927	Can Cab Signaling Be Relied Upon Exclusively? 989.8 KB
1940	Centralized Traffic Control Solves Problem on the Norfolk & Western 7.5 MB
1940	Coded Signaling Control System on the Norfolk & Western 10.0 MB
1961	Corrections for “Underwater Interlocking” Circuits 218.9 KB
1949	Crossing Protection 1.1 MB
1937	CTC in Coaling Station Territory 6.6 MB
1941	CTC Installed on Norfolk & Western 5.1 MB
1960	CTC signals clear automatically 1.1 MB
1956	CTC Signs 1.8 MB
1949	Either-Direction Running on Two Tracks on the Norfolk & Western 5.5 MB
1943	Fire-Proof Construction 11.6 MB
1915	First Position Light Signal Installation 580.6 KB
1936	Flood Damage to Signaling 5.0 MB
1960	From the field 945.2 KB
1949	Hold-Out Signals in CTC 1.0 MB
1947	How Low Is a Dwarf? 438.7 KB
1922	ICC Proposes to Order Train Control on 49 Roads 376.4 KB
1936	Importance of Warning Whistle 6.8 MB
1940	Intermediate Signal Spacing and Control 2.1 MB
1925	Light Signals, Color, Position, or Color-Position 1.5 MB
1927	Marking Signals When Out of Service 1.1 MB
1951	Modern Interlocking on the Norfolk & Western 710.2 KB
1961	N&W Has an “Underwater Interlocking” 1.7 MB
1944	N&W Installs CTC on Shenandoah Valley Line 10.2 MB
1950	Neon Lighting For Crossing Gate Arms 3.1 MB
1959	News briefs. 1959-05 506.5 KB
1960	News briefs. 1960-02 995.4 KB
1960	News briefs. 1960-05 1.0 MB
1960	News briefs. 1960-10 1.8 MB
1960	News briefs. 1960-11 875.5 KB
1961	News briefs. 1961-04 1.5 MB
1961	News briefs. 1961-11 1.3 MB
1963	News briefs. 1963-03 790.6 KB
1963	News briefs. 1963-04 896.6 KB
1963	News briefs. 1963-10 497.4 KB
1963	News briefs. 1963-12 429.2 KB
1964	News briefs. 1964-02 992.4 KB
1964	News briefs. 1964-05 1.0 MB
1964	News briefs. 1964-07 833.0 KB
1965	News briefs. 1965-07 788.3 KB
1965	News briefs. 1965-09 381.8 KB
1966	News briefs. 1966-01 1.4 MB
1922	News of the Month. 1922-08 394.0 KB
1943	Norfolk & Western Installs CTC on 14 Miles of Single Track 4.4 MB
1937	Ohio Flood Damages Signaling 9.7 MB
1931	Power Interlocking Eliminates Delays 488.8 KB
1927	Protecting Main Line Switches 486.2 KB
1922	Railroads Argue Against Automatic Stops at ICC Hearing 436.8 KB
1947	Railroads Request Relief from the ICC Signal Order 365.7 KB
1936	Replacing Semaphores With Position Light Signals On the Norfolk & Western 7.9 MB
1958	RS&C 50th anniversary: Railroad communications ... from Morse to microwave 3.3 MB
1958	RS&C 50th anniversary: Signaling ... manual to automatic 2.0 MB
1928	Signal and Train Control Hearing Ends 2.0 MB
1930	Signal Aspects for a Four Block System 2.8 MB
1926	Signal Business Is Good Especially For Single Track 382.3 KB
1958	Signaling to cut expenses in '58 411.4 KB
1936	Slide Detector Fences 4.3 MB
1957	Survey shows progress in signal education 330.6 KB
1937	The Rotating Stop Sign 1.1 MB
1925	The Train Control Situation 853.0 KB
1926	Train Control Progress in 1925 3.1 MB
1950	Unusual Signals 1.1 MB
1964	What CTC Can Do For You 417.8 KB
1937	What is in Store for the Signal Field? 1.8 MB
1965	What's the Answer? 1965-06 235.3 KB
1960	What's the answer? AC track circuits 281.9 KB

Norfolk & Wstern 1

1960	Signaling enters automation 630.7 KB

Norfolk Southern 1

1959	News briefs. 1959-05 506.5 KB

Norfolk, VA 5

1940	Coded Signaling Control System on the Norfolk & Western 10.0 MB
1961	Corrections for “Underwater Interlocking” Circuits 218.9 KB
1961	N&W Has an “Underwater Interlocking” 1.7 MB
1950	Neon Lighting For Crossing Gate Arms 3.1 MB
1947	Railroads Request Relief from the ICC Signal Order 365.7 KB

Normal, IL 1

1923	Chicago & Alton Installation of Train Control 1.4 MB

Norris City, IL 1

1962	News briefs. 1962-03 1.1 MB

Norris Jct., AL 1

1960	News briefs. 1960-04 896.6 KB

Norristown Jct., PA 1

1962	News briefs. 1962-02 1.4 MB

North Adams, MA 1

1947	Hoosac Tunnel Interlocking and CTC 1.7 MB

North Africa 1

1943	Railway Signaling in North Africa 3.5 MB

North Albany, NY 1

1965	News briefs. 1965-01 2.0 MB

North Bay, Ontario 1

1962	News briefs. 1962-06 989.1 KB

North Bessemer, PA 2

1957	Bessemer takes up second track and installs Centralized Traffic Control 706.4 KB
1943	CTC on the Bessemer & Lake Erie 8.7 MB

North Beverly, MA 1

1959	B&M takes up track and installs traffic control, gates and flashers 735.7 KB

North Cairo, IL 1

1948	CTC Big Help to GM&O 1.7 MB

North Chicago, IL 2

1954	Automatic Gates Increase Safety 3.2 MB
1938	North Shore Installs Automatics 3.9 MB

North Dayton, OH 2

1954	CTC Moves Heavy Trains 4.1 MB
1951	On the Baltimore & Ohio New Interlocking Speeds Trains 641.0 KB

North Denver, CO 1

1950	CTC Extended on the Rio Grande 4.4 MB

North East, MD 1

1936	Remote Control on the Pennsylvania 14.5 MB

North East, PA 2

1943	New York, Chicago & St. Louis Installs Centralized Traffic Control on Busy Sections of Single Track 7.9 MB
1955	News briefs. 1955-08 830.4 KB

North Edmonton, Alberta 1

1922	News of the Month. 1922-09 562.2 KB

North Fond du Lac, WI 4

1963	News briefs. 1963-10 497.4 KB
1965	News briefs. 1965-09 381.8 KB
1965	News briefs. 1965-10 1.1 MB
1941	Remote Control Installation 2.4 MB

North Gilman, IL 1

1923	News of the Month. 1923-10 1.9 MB

North Haven, CT 1

1956	New Haven Consolidates Control of Nine Interlocking Layouts 8.3 MB

North Junction IL 1

1957	Why Cotton Belt installed CTC on entire main line 914.0 KB

North La Crosse, WI 1

1947	Railroads Request Relief from the ICC Signal Order 365.7 KB

North Lake WI 1

1913	New Block Signaling on the North-Western 1.8 MB

North Lima, OH 1

1932	Centralized Traffic Control on the Baltimore & Ohio 4.4 MB

North Little Rock, AR 5

1960	News briefs. 1960-01 1.1 MB
1960	News briefs. 1960-02 995.4 KB
1961	News briefs. 1961-05 1.1 MB
1964	News briefs. 1964-04 1.3 MB
1960	Signal construction steady in 1959 385.2 KB

North Little ROck, AR 1

1964	News briefs. 1964-08 811.5 KB

North Market St., St. Louis, MO 2

1908	Interlocking Facilities of the St. Louis Terminal Railroad Assn. of St. Louis 7.2 MB
1961	News briefs. 1961-06 725.8 KB

North Milwaukee, WI 1

1950	Special Interlocking Controls 2.2 MB

North Minneapolis, MN 1

1965	Midwest RRs fight the weather 914.4 KB

North Philadelphia, PA 2

1964	News briefs. 1964-11 797.3 KB
1915	North Philadelphia Interlocking 828.9 KB

North Platte, NE 4

1947	ICC Holds Signal Hearing 507.5 KB
1957	More automation for signaling in 1957 1.2 MB
1951	More Signal Construction in 1950 1.0 MB
1955	Much is new in signaling for 1955 826.7 KB

North Possum Point, VA 1

1955	How to run reverse temporarily 197.6 KB

North River, MO 1

1959	Burlington installs modified CTC 1.0 MB

North Vernon, IN 1

1937	APB, Remote Control, and CTC on the Baltimore & Ohio 11.9 MB

North Yard (Danville, IL) 1

1947	All-Relay Plant on the C&EI at Danville, Ill 915.6 KB

Northern Maine Jct., ME 1

1957	BAR takes up second track and installs CTC 706.6 KB

Northern Pacific 70

1960	Fourteen RRs adopt new operating code 945.4 KB
1925	A. H. Rudd Discusses Train Control at Philadelphia Engineers' Club 2.8 MB
1946	Accident on Siding Results in ICC Recommendation for Locks 871.3 KB
1938	Adapting Signaling to Requirements 1.7 MB
1942	Application Denied 194.9 KB
1937	Approach Locking on Dwarf Signals 1.2 MB
1928	Automatic Interlocking (Letter to the Editor) 499.6 KB
1937	Automatic Plant Replaces Mechanical Interlocking 1.3 MB
1911	Automatic Signals on the Northern Pacific 7.2 MB
1911	Automatic Signals on the Northern Pacific 6.3 MB
1928	Automatic Signals Within Yard Limits 1.0 MB
1928	Can Preliminary Latch Locking Be Eliminated 595.1 KB
1935	Checking Signal Lamps 3.3 MB
1925	Comparison Between the APB System on Single Track and Overlap Circuits 654.1 KB
1927	Control of Stop Indication in Approach-Lighted Territory 972.5 KB
1940	D.C. Test Set For Relays, Slots 3.7 MB
1931	Derails in Passing Sidings 1.1 MB
1931	Efficiency Tests 1.9 MB
1935	False Operation of Crossing Signals 3.3 MB
1922	ICC Proposes to Order Train Control on 49 Roads 376.4 KB
1950	Interlocking Plant Horns 2.3 MB
1929	Mathematics of the A.C. Track Circuit 974.9 KB
1965	Midwest RRs fight the weather 914.4 KB
1957	More automation for signaling in 1957 1.2 MB
1960	News briefs. 1960-07 845.4 KB
1960	News briefs. 1960-08 603.8 KB
1961	News briefs. 1961-02 1.4 MB
1961	News briefs. 1961-06 725.8 KB
1961	News briefs. 1961-07 648.9 KB
1961	News briefs. 1961-10 1.0 MB
1961	News briefs. 1961-12 978.0 KB
1962	News briefs. 1962-02 1.4 MB
1962	News briefs. 1962-05 826.8 KB
1962	News briefs. 1962-07 494.2 KB
1962	News briefs. 1962-10 461.7 KB
1963	News briefs. 1963-01 951.3 KB
1963	News briefs. 1963-03 790.6 KB
1963	News briefs. 1963-06 961.3 KB
1963	News briefs. 1963-10 497.4 KB
1964	News briefs. 1964-01 535.9 KB
1964	News briefs. 1964-02 992.4 KB
1964	News briefs. 1964-07 833.0 KB
1964	News briefs. 1964-08 811.5 KB
1964	News briefs. 1964-12 981.5 KB
1965	News briefs. 1965-01 2.0 MB
1965	News briefs. 1965-07 788.3 KB
1965	News briefs. 1965-08 749.4 KB
1966	News briefs. 1966-01 1.4 MB
1922	News of the Month. 1922-04 613.8 KB
1922	News of the Month. 1922-05 426.4 KB
1922	News of the Month. 1922-12 388.1 KB
1924	NP Interlocking in Minneapolis 2.3 MB
1935	Preventing Unnecessary Operation of Highway-Railroad Crossing Signals 4.3 MB
1921	Proposed Modification of Stop-and-Proceed Rule 1.4 MB
1922	Railroads Argue Against Automatic Stops at ICC Hearing 436.8 KB
1929	Rear-End Flagging 745.4 KB
1926	Semaphore or Light Signals? 1.4 MB
1927	Should Motor Car Operators Watch Signals More Carefully 1.2 MB
1930	Should Signal Clear? 1.2 MB
1928	Signal and Train Control Hearing Ends 2.0 MB
1960	Signal construction steady in 1959 385.2 KB
1933	Signaling Construction During 1932 632.3 KB
1936	Slide Detector Fences 4.3 MB
1947	Territories Involved in the ICC Signaling Order 388.2 KB
1931	The Light-Traffic Crossing 276.3 KB
1925	The Train Control Situation 853.0 KB
1921	Train Order Deliverer Expedites Traffic 1.3 MB
1965	What's the Answer? 1965-06 235.3 KB
1929	Where Should Grade Signals Be Installed? 1.2 MB
1922	Work in Signal Field Shows Gain Over 1920 784.5 KB

Northern Telegraph 1

1922	Work in Signal Field Shows Gain Over 1920 784.5 KB

Northtown Yard, MN 1

1965	Midwest RRs fight the weather 914.4 KB

Northwestern Elevated 1

1922	News of the Month. 1922-09 562.2 KB

Norton, MA 1

1922	Flashlight Crossing Signal 280.8 KB

Nottingham, OH 3

1955	New York Central’s CTC – It’s Four Tracks to Two 4.1 MB
1955	News briefs. 1955-08 830.4 KB
1957	Where Two Tracks Do the Work of Four 3.2 MB

NX interlocking 17

1950	Big NX Interlocking at Atlanta 6.3 MB
1956	Burlington Has Compact Control Machine for Consolidation of 14 Interlockings 11.3 MB
1954	Electric Interlocking on the Rio Grande 3.4 MB
1949	Entrance-Exit Interlocking Installed on Missouri Pacific 3.0 MB
1941	Modern Entrance-Exit Interlocking Replaces Mechanical Plant On Indiana Harbor Belt 6.9 MB
1949	New Interlocking in Louisville 5.3 MB
1940	New Interlockings at Windsor, Ont. On the Michigan Central 14.1 MB
1954	New Orleans Passenger Terminal 4.7 MB
1937	New York Central Installs First Button-Control Route Interlocking 9.0 MB
1949	New York Central Installs Interlocking 3.3 MB
1944	New York Central Installs NX Interlocking at Utica 5.7 MB
1944	New York Central Modernizes an Interlocking 5.0 MB
1956	NX Control Replaces Lever Machine 2.8 MB
1936	NX Electric Interlocking 3.8 MB
1950	NYC Installs Big NX Plant at Fostoria, Ohio 3.9 MB
1940	Route Type Interlocking at Tower Grove in St. Louis 11.1 MB
1939	San Francisco-Oakland Bay Bridge Interlocking Plants 9.4 MB

Nyasaland 1

1965	Rhodesia has 1215 miles of CTC 949.2 KB

NYC Robert R. Young Yard, Elkhart, IN 1

1959	Signaling moderate during '58 528.6 KB

Railway Signaling: N