A21 Pembury Dualling Scheme

- Date: April 2015 – April 2018
- Client: Balfour Beatty
- Project Type: Smart Motorway Schemes
Project Overview
The AQW system notified motorists of slow or stopped traffic in the approaching roadworks and slowed the motorists’ speed to minimize and prevent rear-end collisions. Based on real-time traffic data and pre-programmed algorithms, AQW information was displayed automatically on our VMS. In addition, our CCTV cameras provided live coverage at crucial locations throughout the roadworks.
The system enabled Balford Beatty to log valuable data to further proper flow of traffic through the roadworks. This allowed for improving the customer’s experience through the roadworks and meet Highways England and client requirements for safe and smooth traffic flow.
Project Design




4 trailer-mounted speed sensors detecting queues
3 Bluetooth sensors for journey time
3 trailer-mounted CCTV cameras for incident management
JamLogic software to integrate all the data and automate VMS signs



