---
id: stories/a-late-bus
about:
  label: A late bus
  description: >-
    A live model of the roads spots a bus falling behind and helps staff change
    the signals ahead of it.
story:
  order: 1
domains:
  - mobility
relations:
  - predicate: tells
    target: engines/aimsun
provenance:
  origin: survey
  sources:
    - title: 'Tees Valley Combined Authority: traffic twin in operation, August 2025'
      url: >-
        https://teesvalley-ca.gov.uk/news/cutting-edge-technology-set-to-slash-wait-times-and-boost-bus-reliability-across-our-region/
    - title: 'Aimsun Live: traffic simulation and management'
      url: 'https://www.aimsun.com/aimsun-live/'
  reviewed: 2026-09
  reviewed_by: 'wording by Claude, compressed from the survey; to be rewritten'
  status: proposed
---
Tees Valley's traffic twin, developed with Aimsun, is used at its traffic management centre to identify delayed buses and support changes to signal operation.