Calibrated Trip Length Distributions
Back to Resource HubWhat is it?
A dataset showing how trip demand changes with distance. It uses calibrated NoHAM model data to show how many trips are made across different trip lengths.
How is it useful?
Use it to understand how far people typically travel and where demand drops off. It helps you set realistic catchment areas, test scheme impacts over distance, and improve model assumptions for appraisal. It can also strengthen the evidence for local plans and business cases by showing how demand varies across short, medium and long trips.
Dataset code
01207
Licence
Open Government Licence 3.0
Limitations
As the data is based on the output of TfNs strategic highway model (NoHAM) the TLDs are unlikely to be accurate at the local level.
Attributions
Data is licensed under the Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/), noting the following attributions:
Department for Transport. (2024). National Travel Survey, 2002-2023: Special Licence Access. [data collection]. 13th Edition. UK Data Service. SN: 7553, DOI: http://doi.org/10.5255/UKDA-SN-7553-13
Department for Transport. (2019). National Transport Model version (NTMv5)
Department for Transport. (2013). National Trip End Model (NTEM) Version 8 has been used on Open Government License. (https://www.data.gov.uk/dataset/11bc7aaf-ddf6-4133-a91d-84e6f20a663e/national-trip-end-model-ntem).
Office for National Statistics. (2023). 2011 Census Microdata Individual Safeguarded Sample (Local Authority): England and Wales. [data collection]. UK Data Service. SN: 7682, DOI: http://doi.org/10.5255/UKDA-SN-7682-1