Buchanan Computing Ltd

Buchanan Computing was a London software company founded in 1997 and focused on traffic engineering and highway management. In 2024 it was acquired by Causeway, and its products and consultancy team have since been rebranded under the Causeway name.

What Buchanan Computing offers

• Traffic order management — ParkMap, used to manage the full life of traffic regulation orders.
• Traffic sign design — SignPlot and SignLoad for signs and road markings.
• Collision analysis — AccsMap, a map-based system now sold as Causeway AccsMap.
• Consultancy — advice on policy, digital traffic orders and compliance.
• Web mapping and training — mapping tools and teaching for users.

Who it works with

Its main customers are UK highway authorities. Its software was reported as supporting over 90 local authorities before the acquisition.

Key facts

• Founded: 1997
• Based in: London
• Ownership: acquired by Causeway in 2024
• Named after: the transport planner Sir Colin Buchanan