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| Re: Queens Bus Redesign (350163) | |||
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Re: Queens Bus Redesign |
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Posted by Stephen Bauman on Mon Jun 9 13:11:34 2025, in response to Re: Queens Bus Redesign, posted by WMATAGMOAGH on Mon Jun 9 10:37:20 2025. It's still a work in progress. I developed a more meaningful metric than end-to-end bus speed. That's what I'm doing right now. I hope to finish it before the Redesign starts.That metric is pretty much NYC based: it's average travel time to/from census block and Manhattan CBD at 5 minute intervals throughout the 24 hour day. It includes bus and subway trip time from each of the 14,000 census blocks in Queens. The app can be expanded to other boroughs or combinations thereof. The bus speed results do not require NYC specific data. It does require the GTFS to have a shape file. That's optional and many operators do not include it in their GTFS. This is especially true for operators outside the US. There is an app to derive the shape file from the bus stop locations and trip stop times. It's proprietary from ArcGis. I'm working strictly from open source data using only open source applications. I tried to write my own but the results were not particularly good. I've discovered an open source application I did not try. I was about give it another try but the MTA released the GTFS. So, that try is on the back burner. I did develop a metric that does not require the shape file for comparing transit access. That's the walking distance between all the buildings and the nearest bus or subway stop. I calculate the percentiles for the walking distance to compare cities for the 800 m (1/2 mile) walking threshold to a subway entrance or 400 m threshold for walking distance to a bus stop. That's the extent of my excursions outside NYC. |
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