1913 Transit Time Isochron Map for the Peninsula and East Bay
Ever wonder what commutes were like from the Peninsula and East Bay to San Francisco in years gone by? The folks at Burrito Justice pointed our attention to this neat 1913 transit time isochron map for the Peninsula and East Bay to 3rd and Mission for ferries and trains (steam and electric). To see additional transit-related documents from earlier years, take a glance at Eric Fischer’s Flickr page.
Here is the text included at the side of the map:
While practically half of San Francisco lies within the 30-minute time zone, none of the trans-bay commuters now reach land within that time. All of the trans-bay districts are reached within an hour, the same as San Francisco. But for the former, from one-fourth to one-half of the time is consumed in the water trip. Shaded contour areas and time points within circles indicate how far commuters may ride within 10-minute intervals from the center of the business district-Third and Market Streets (allowing seven minutes to the Ferry terminal, and 10 minutes to the railroad terminal at Third and Townsend Streets). The inner shaded zones correspond to the running time by electric and cable lines. Double circles and the Peninsular zone particularly refer to steam lines. Running speed is indicated directly by the relative distance between these time points. For steam trains, the time shown is on limited local trains passing by only the less important stations. Some limited expresses make 26% better time, and way locals 15% slower time than here indicated. With the same character of rapid transit equipment, it appears that from 20 to 30 minutes more running time will always be necessary, by reason of the water trip, for trans-bay commuters to reach their homes than for San Franciscans, but that no such handicap exists as a limitation for Peninsular development.