This article arose from a recent Twitter conversation where I was asked whether the capacity of of 501 Queen route had been reduced because crowding appeared to have increased.
Crowding has many sources including service reliability (even distribution of demand among available vehicles), scheduled frequency (how many vehicles are supposed to arrive per hour), actual service provided and the type of vehicle used.
Past articles have looked at service reliability and running times. The mid-February 2018 schedules brought a formal change to the vehicle type on which the 501 schedules are based. For many years, the capacity alleged was based on the longer ALRV (articulated) streetcars, but the service was actually operated by a mix of the shorter CLRVs and ALRVs. This was due to two factors: the declining reliability of the ALRV fleet, and the desire to increase capacity on 504 King. The new schedule assumes that CLRVs will be the primary vehicle type used, and the number of cars per hour (or conversely the headway or time between cars) has been adjusted to reflect this. However, a review of service over recent years shows that the actual capacity operated on Queen is at best comparable to that of a few years back, and more commonly is lower with some of the decline being fairly recent.
The charts in this article have the same format as capacity charts in my articles about the King Street Pilot, most recently the March 2018 update. Of particular note is that the capacity operated on King has been growing with its transition to the larger Flexity cars, and now regularly peaks above 2,500 per hour, peak hour/direction. The capacity on Queen never reaches 2,000/hour because less service is offered there.
501 Queen service was beset by several disruptions and diversions over the past few years notably a water main and streetscape project west of Spadina in 2016 and 2017, and a series of track construction projects reaching over the entire length of the route from southern Etobicoke to Neville Loop. Another upheaval is planned for 2019 with the reconstruction of the King/Queen/Roncesvalles intersection, entrances to Roncesvalles Carhouse and trackage on The Queensway west to Parkside Drive.