Vancouver: Another day on the route 20

May 25, 2016


3 bus 20 in a row, a typical bus bunching happening on Victoria#54th

Reliability on the route 20 is a huge issue. Its lack of reliability stem essentially of its Hasting and Commercial Drive segment. Those segments are also the most detrimental to the speed of transit in this corridor. both speed and reliability are very signifcant factors affecting both the transit attractiveness and efficiency.

The average bus 20 speed is 14.36km/h [1′, but in practice most of the riders will experiment a significantly lower average speed on the route busiest section. Below is the speed map for the bus 20 on an average weekday.

bus 20 (to Downtown) speed map on a weekday as computed from [1]
The horizontal axis represents the time of the day, the vertical axis, the location on the corridor, while the color represents the speed. (see also speed map for the SB direction

[1] Translink GTFS data for weekday September 2014


2 Responses to “Vancouver: Another day on the route 20”

  1. FRJ Says:

    Route 20 may be a particularly egregious example of bus bunching but it happens regularly on other routes. Unfortunately, CMBC – which is actually responsible for operations – doesn’t have much in the way of on-street route management. Judicious use of short turns could be used to break up bus bunches and fill service gaps in the opposite direction. CMBC’s basic policy seems to be pad layover times to get vehicles back on schedule. Alternatively, bus operators are allowed to skip stops under certain conditions but this is annoying to waiting customers, even if there is a following coach arriving a few minutes later.

    However, these are simply stopgaps that attempt to maintain a semblance of schedule.

    What is needed is a root cause analysis of why bus bunching occurs. Once this has been determined then solutions can be developed. Transit priority measures, traffic signal timing changes, revised parking regulations, turning restrictions, etc. are all possibilities

    • Voony Says:

      yes, in fact it is my intention to develop on it in a further post. but what we can see as the root cause are:

      * general traffic condition variation.
      * dwelling time variation.

      then, some issues can be addressed while some other can be alleviated on the line you mention

      Also I have experimented (very rarely) buses 410 skipping altogether the Fraserwood detour to enable to recover on their schedule

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