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Rethinking Transport Assessments - A Research Proposal
The Transport Planning Society has published a research proposal calling for urgent investigation into Transport Assessments (TAs), which determine travel demands for new developments and infrastructure requirements worth millions annually.
The National Planning Policy Framework requires 'vision-led' transport planning, moving away from worst-case traffic assumptions. However, without robust evidence supporting this approach, highway authorities may continue demanding unnecessary highway capacity increases, undermining government goals to accelerate planning and housing delivery.
The proposal identifies critical knowledge gaps including trip generation methodologies, real-world development impacts, and travel plan effectiveness. Despite TAs' pivotal role in planning decisions, surprisingly little research underpins current practices.
TPS will convene an autumn workshop with stakeholders to agree research topics and implementation approaches. This evidence base is essential for supporting sustainable, vision-led planning.
To read the paper in full, see below.
The TPS Policy Panel was formed in November 2024 to:
- · Ensure TPS is influential and proactive in seeking improvements in policy and practice, and in setting the transport agenda at a national, regional and local level.
- · Be proactive in the creation of an open, diverse and inclusive transport planning community.
- · Provide the widest possible forum to engage on relevant and topical transport planning issues.
- · Improve the public understanding and the image of transport planning and transport planners and promote transport planning as a profession.
The panel has five sub-groups, and this report is from the Development & Land Use Planning (DLUP) panel, produced by Dr Colin Black, Mayer Brown and TPS (DLUP Lead), Professor Peter Jones (UCL), Phil Jones (PJA), Dr David Knight (NRP), David Milner (Create Streets), and Chris Stack (PJA).
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