thanks fro your kind words and good to see the datas from nname:
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Originally Posted by nname
I wonder what you use to generate the distance data. I tried to use the 'shape' data in GTFS, but they seems to be very inaccurate. Try to plot the shape for Expo and the 97 B-Line, and you'll see..
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yes I have noticed the translink gtfs shape datas are not good. the way-point are provided in "random' order what violates the GTFS specs btw, and so you are better to use the straight-line distance between bus stops that the shapes.txt "as is".
I reorder the wpts (starting from the first stop...pick up the closest wpt...then from this wpt, pickup the closest wpt which has not already been picked up yet...up to the last stop).
The Algo written in Perl is
here (select: gtfs_compute_shape_length.pl )
I will probably modify it, because it doesn't work well if the route loop on itself (that is typically the case of the M line, which is corrected), but on average I have found it provides a better approximation than straighline distance between bus stop (which are still better that the shape distance provided
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It is very hard to determine the vehicle used for route as many routes now operate as mixed vehicles. This is as far as I know:
134, 136, 153, 157, 337, 531 - Shuttles during weekends
188 - 40ft bus during peak, while shuttle during off-peak
345 - Shuttle during evening
C30, C92 - 40ft bus during peak hours, the C92 can get Orions too
97, 143, 150, 160, 190, 257, 403, 701 - Mixed between 40ft and 60ft buses
227, 251*, 252*, 256, 388, 609 - Fully shuttle
311 - Orion
394 - Mixed Orion and standard 40ft bus
C28* - Fully shuttle, used to use 40ft bus during peak
And there are some occasionally weird ones:
135, 145 - The trips made from PoCo bus are usually 40ft instead of 60ft
410 - Few trips run by Orion or 60ft bus
407, C86, C87, C88 - Few trips run by Orion
401, 861 - Few trips run by 60ft bus
C24, C37, C93 - Few trips run by 40ft bus
101, 155 - Few trips (school special?) run by Orion
* = recent changes
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Thanks a lot for all those information: I will integrate them whenever time permits
I think the 60ft on the route 403, are bus going or coming of the route 480 (I assume it is also the case on route 401):
normally by using the GTFS block_id field, we could be roughly able to sort-out which run are 60ft vs 40 ft on route 403...
As an example, in the sept 2013 gtfs, I have the bus block_id 1328145 operating a 401 trip to Brighouse, then become 403 to Bridgeport, then become 480 to UBC...so we can probably conclude that the bus is a 60ft
To be sure, I am mainly interested to have typical numbers for cap.km and bus fleet utilization.
What I can roughly guess is that spare ratio on the 60ft trolleys is ~25%...and 90% on the 40ft trolleys