Quote:
Originally Posted by H2O
The relationship between station spacing and propulsion has to do with timing. Dwell time at stations is actually the factor that slows transit the most. The more stations there are, the slower the overall trip. This line was intended to serve commuters from as far away as Leander (32 miles). Adding a lot of stations closer to the ultimate destination (Downtown) makes the trip less time competitive with other modes of transportation. Electric propulsion compensates by allowing quicker starts out of the station. The Red Line trains are actually Diesel/Electric Multiple Units (D/EMU), they are electric propulsion powered by online diesel generators rather than an external electrical source. As such, they are not as slow as a DMU, but heavier and slower than an EMU. Because they are partially electric propulsion, they could be retrofitted with pantographs if the corridor was electrified. That would make them quieter and lower emissions, and possibly make them a little quicker as well.
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Some small speed benefit from electrification, but that probably wouldn't be the reason to do it. Emissions benefits would probably be greater. They're clean-ish diesel but like all diesels have particulate emissions (plus C02).
Long term battery improvements might allow for only partial pantographs or even quick charging at stations.
Way down the list from most other government vehicles to electrify though. I'd do garbage trucks first.
They'd probably get a greater trip time improvement by speeding up the existing stretches in the city that are pretty slow and increasing the Lakeline to Leander segment top speed closer to 100.
They'd probably need more crossing improvements for both of those, and probably more track superelevation for the later (separated from the freight?). Another option would be an express or semi-express service from Leander skipping some stations (especially lakeline). But you'd almost certainly need double tracking and maybe some third passing sidelines.
Lots of stuff to spend money on, a lot of which will be worth it long term.
First up is the grade separation at Lamar. I think a grade separation (depression) under 183 could also be a benefit. If done right, this could also provide a grade separated bike/pedestrian crossing of 183 or even a station serving the bottom part of the domain/crossroads area.
Quote:
Originally Posted by papertowelroll
Imagine if we had stations at places like Webberville, Rosewood, Cherrywood, 51st, and Anderson Lane to go with the new stations at Q2 and Broadmoor.
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I've come to favor 183 over Anderson lane for any potential new station in that area (even though I'm closer to the later). Way more opportunity for redevelopment and density (the commercial fronting Anderson is _really_ shallow there).
Anyway, probably should move the Transportation channel for anything more on this.