Other than the Through Routes, the first vehicles with signs displaying route numbers were trolleybuses, introduced in 1930. Motor buses began displaying route numbers in 1935. PCC streetcars displayed route numbers upon their introduction in 1936, while signs with route numbers were installed on older streetcars after the CTA takeover in 1947.
Most routes listed survive today as CTA bus routes. Also listed are most of the discontinued bus and streetcar routes. Most route histories are included under the present routes. Although for simplicity, route histories of portions of certain routes are instead listed under the discontinued routes.
The Through Routes are listed first. Through Routes still in existence are also listed with the various local routes.
Former Chicago Motor Coach Routes
Concise Route Histories
Concise list of nearly all CTA bus and streetcar routes, past and present, on one page.
Omitted are certain temporary, experimental or seasonal routes. Also omitted are certain minor route changes and extensions, especially changes in downtown routings. Many routes were gradually extended in stages, before reaching the maximum length.
Not included are hours of operation for the routes.
In 1973, CTA began operating four bus routes in Evanston, after the Evanston Bus Company ceased operations, and CTA was the only agency suited to operate such a service. Routes are numbered in the low 200's.
CTA Route Numbering System
Route numbers became widely used by CTA during the 1950's.
Trolleybus Routes
CSL and CTA.