This article continues the series on 501 Queen car operations in November 2011 by looking at the level of service operated beyond common short turn points on the route. This should be read in conjunction with the previous articles on the route’s headways and running times.
The TTC has a target for headway “punctuality” of ±3 minutes of the scheduled value, and a target that this should be met 70% of the time. In practice, the space between many vehicles exceeds this target, sometimes quite substantially, but much is hidden by averaging of values over multiple locations, times and days. Riders, however, experience service at specific times and locations, and averages are cold comfort when they find themselves in the 30% of service that does not meet the target.