F-Line to Dudley
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The time savings depend a lot on the number of stops. A Caltrain local has 22 (!) stops due to the length of the trip between San Fran and San Jose, so that's a whole lot of time spent in acceleration that the EMU's can help with a lot. The Baby Bullet expresses with 8 stops, much less so. On the T there wouldn't be nearly such incredibly dense stop rosters on any given line, so most of the time savings would be on the order of 15-20% rather than the 25% Caltrain achieves on its locals. The NEC Commission, for example, estimated an 18% reduction on Providence Line schedules and a 16% reduction on Wickford Jct. schedules using EMU's of similar class to what Caltrain is using. And that's on a line with not a lot of stops. So the average T line would probably do a little better.Caltrain's electrified service is now in operation. Among other things, it looks like this will reduce travel time by 5 minutes on the express service and by 25 minutes (!) on local service. Setting aside the "inside baseball" around how the thing came to fruition, hopefully from a PR perspective this will provide an easy-to-understand case study when making the pitch for electrification to the public here.
Example of local coverage: https://abc7news.com/post/caltrain-...ervice-san-francisco-silicon-valley/15333842/