@ethanc8.bsky.social
Dr. Vuchic was just out there designing timed transfer networks for SEPTA, amazing
@ethanc8.bsky.social · 3w ago1981-10-01, "Timed Transfer System Planning, Design, and Operation", by Vukan Vuchic (University of Pennsylvania) Overview of theory behind Integraler Taktfahrplan, and a proposal for implementing ITF in the buses of west suburbs of Philadelphia repository.upenn.edu/entities/pub...
The Americanism of using "regional rail" to mean " frequent high-quality suburban railway service" dates back to at least 1991 "From Suburban Railways to Regional Rail Systems" by Vukan Vuchic, 1991-04-01 repository.upenn.edu/entities/pub...
From Suburban Railways to Regional Rail Systems
In recent decades rail systems serving cities and their suburbs have undergone a major expansion and evolution. As one of the oldest modes of mechanized urban transportation, suburban or commuter railways were specialized services for commuters operated by railway companies which primarily operated long-distance passenger and freight transport. Today most of these railways have grown into regional rail systems - regular transit services which meet the need for high quality multicentered transportation throughout growing metropolitan areas.
repository.upenn.edu
The new, somewhat consistent through-routings being introduced by SEPTA I semi-arbitrarily chose the numbers and colors; they are not official and very few through-routes are the same as either the pre-2010 routes or Vukan Vuchic's proposals.
Chicago-Toronto high-speed line idea, as the first stage in a Midwest HSR network
Lots of interesting railway history documents at jonroma.net/rail/articles/
Railroad articles | jonroma.net
Information about railroad operations and signaling, maps, and more.
jonroma.net
@ndhapple.bsky.social You'll probably be interested in this 1927 document detailing the construction of the Winnetka grade separation on UP-N and the North Shore Line: thetrolleydodger.com/2022/03/23/t...
Modified version of the Pace bus weekday-midday frequency map (from the ReVision reports), updated for 2026-06-01. As far as I can tell, this is the only up-to-date map of Pace other than online maps like Catenary. Summaries of the weekday-midday service changes since Spring 2024 in replies below.
Service improvements for RTA/NITA in 2026 www.rtachicago.org/uploads/imag... First up is the new routes added to the CTA Frequent Network: #35 31st/35th #74 Fullerton #85 Central #8 Halsted
@blvdsubway.bsky.social Why does the Roosevelt Blvd line need to be subway, rather than elevated, at any point along the route except at its connection to the Broad Street subway?
Unofficial South Shore Line timetables for St. Patricks Day 2026, based on the recent service alert published by NICTD. Grab a printable copy from labs.catenarymaps.org/nictd-gtfs/N.... GTFS feed available at github.com/catenarytran...; it will show up in Catenary Maps (@catenarymaps.org) soon!
