Exploring the impacts of transit priority measures using automatic vehicle monitoring (AVM) data

Graham Currie, Kelvin Goh, Majid Sarvi

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

4 Citations (Scopus)


This paper measures the operational performance of a series of transit priority initiatives using an empirical analysis of Automatic Vehicle Monitoring (AVM) data on trams in Melbourne, Australia. Very little previous research has modelled factors influencing the performance of priority schemes and none has explored the relative performance of space (or lane) based measures compared to time (or traffic signal) measures. An after-before comparison of priority schemes showed that on average both space and time priority measures reduced run time (average -0.18 mins or 1.6% and -0.05 mins or 0.005% respectively). They also reduce run time variability. On average, the space based priority measures studied covered 1.97 kms or 61% of average route section lengths. Time based measures covered on average 1.91 or 25% of the junctions on each route section studied. A regression model explained 83.5% of run time and 51.8% of the variation in run time. The most influential factors affecting running time were; route length (β=0.59), scheduled running time (β=0.41), space priority (β=-0.16), weekday (β=0.09), direction of travel (β=0.07), and time priority (β=-0.03). Results suggest a kilometre of space priority results in a 7.1% reduction in run time whereas a time priority measure at one junction yields a 1.7% decrease in run time. Results also suggest space priority (over 1 km) will reduce run time variability by 10.0% while time priority (at a single junction) will reduce run time variability by 5.4%. Both space and time priority measures produce a greater effect on run time variability than run time suggesting impacts on service reliability are larger. The paper discusses the implications of these findings on transport policy and explores areas for future research.

Original languageEnglish
Title of host publicationAustralasian Transport Research Forum (ATRF 2012)
Subtitle of host publication26-28 September 2012, Perth, Australia [proceedings]
EditorsMelissa Bouverie
Place of PublicationPerth Western Australia
PublisherAustralasian Transport Research Forum
Pages1 - 15
Number of pages15
Publication statusPublished - 2012
EventAustralasian Transport Research Forum 2012 - Perth, Australia
Duration: 26 Sep 201228 Sep 2012
Conference number: 35th
https://www.australasiantransportresearchforum.org.au/papers/2012 (Proceedings)


ConferenceAustralasian Transport Research Forum 2012
Abbreviated titleATRF 2012
Internet address


  • Automatic Vehicle Monitoring
  • Operational performance
  • Running time
  • Tram
  • Variability

Cite this