Subway Tech

Subway Signals: A Complete Guide
Descriptions and illustrations of subway signals and marker signs, including a full tutorial about subway train signalling as used in the New York City Subway. If you ever wanted to know what the signals mean or how the track switches and signals interact, this is the guide for you.
 Ce document également disponible en français

Power Generation
A collection of articles about power generation in the subway system, including the IRT Power House, a visit to IRT Substation #21 in Brooklyn Heights, and a description of rotary converter equipment.

Medals and Tokens of the New York City Subway System
A review of commemorative medals and fare tokens presented by collector and researcher George Cuhaj.

Subway Tokens: A Brief History
A history of the dates and fares of the subway token system.

A Brief History of Fare Control
Learn about the history of the turnstile in the New York subway system.