Compass Informatics implement Public Transport Accessibility methodology for NTA
Public Transport Accessibility Levels (PTALs) is a methodology to accurately measure the accessibility of a point on a map with reference to the public transport network. The method was developed in 1992 by the London Borough of Hammersmith and Fulham and was subsequently adopted by Transport for London (TfL) and applied to the Greater London Network.
The model reflects:
- Walking time from the point-of-interest to the public transport access points;
- The reliability of the service modes available;
- The number of services available within the catchment;
- The level of service at the public transport access points – i.e. average waiting time.