Public transport accessibility levels
The London Plan, published by the Mayor of London in March 2016, suggests that public transport accessibility levels (PTALs) are: ‘…a detailed and accurate measure of the accessibility of an area to the public transport network, taking into account walk access time and service availability.’
It suggests that PTALs reflect:
- Walking time from the area 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.
PTALs do not consider:
- The speed or utility of accessible services.
- Crowding, including the ability to board services.
- Ease of interchange.
[edit] Related articles on Designing Buildings Wiki
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
The Building Safety Regulator announces a call for evidence.
Government approach could undermine delivery and regeneration.
World's first mass timber data centre.
The overlooked environmental aspect of data centre development.
Introduction to radon awareness
New technical information sheet published by CIOB.
Updated supplier guide can help electrical contractors engage with NHP.
CIAT confirm the winners of the 2026 architectural technology awards.
Government launches a one stop shop for flood preparedness.
Sir Edwin Lutyens: Britain's greatest architect? Book review.
CIOB publishes free template to help assess and manage risks.
ECA's reflections on Party Conference season
Burnham wants to be confident of winning before asking for a fresh mandate.
New Chief Construction and Scientific Adviser
Sergio Cavalaro, Professor of Infrastructure Systems at Loughborough University.
Building safety levy for England
CIAT publish estimator tool for members.
















