Maps for the City Centre Bus Plan Detailed Business Case 2024
Selected maps by MRCagney for Aurecon. They cover the dates 20240311, 20240312, 20240313, 20240314, 20240315, 20240318, 20240319, 20240320, 20240321, 20240322 and use scheduling and realtime bus data.
- Duration, variability day pc, 07:00–09:00, links
- Duration, variability day pc, 09:00–15:00, links
- Duration, variability day pc, 16:00–18:00, links
- Speed, median, 07:00–09:00, links
- Speed, median, 09:00–15:00, links
- Speed, median, 16:00–18:00, links
Terminology
The following terms describe the sections of road in our analysis.
- Link: a stretch of road between two public transport stops on the same side of the road. The direction of the link is the same as the vehicle direction between those two stops.
- Segment: a set of adjacent links on the same side of the road, i.e. in the same direction.
- Corridor: a collection of segments, not necessarily contiguous or with the same direction, which describe a study area.
The following terms describe the indicators in our analysis. Passenger-related indicators are omitted, because we had no ticketing data.
- Trip: a single run of a public transport vehicle, usually a bus, with a given route number, direction and start time, e.g. the route 70 bus, Britomart-bound, departing at 08:00. This is also the definition used in the General Transit Feed Specification (GTFS).
- Duration: the run time of a trip across a link or segment (computed from realtime data) excluding dwell times at the link/segment stops
- Speed: the duration a trip across a link or segment (computed from realtime data) divided by the length of the segment
We compute various measures (statistics) for each indicator in our analysis:
- Median: the 50th percentile of the indicator values across all trips in the study period
- Variability day pc: the 95th percentile of indicator values across all trips in the study period, minus the 50th percentile of indicator values across all trips in the day all divided by the 50th percentile of indicator values across the day, the all multiplied by 100 to create a percentage