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Member achieves SIL2 rating on swing bridge scheme

Vido170629ITS (UK) member Smart Video & Sensing Ltd achieved a Safety Integrity Level (SIL) rating of ‘SIL2’ on a project to bring remote control operation to a swing bridge near Gloucester, the company has announced.

The Sandfield Bridge over the Gloucester & Sharpness canal operates on average 4500 times during a seven month season and, at busy weekends during the holiday period, can operate up to 80 times in a day.

The objective of the project undertaken by SVS on behalf of Kier Integrated Services for the Canal & River Trust was to convert the bridge to remote control operation.

The ITS system design incorporated traffic signals, barriers, laser scanners, CCTV, intercom, VoIP, help points and the development of an app to automatically trigger the opening of the bridge.

Barriers and traffic signals on either end of the bridge control vehicular and pedestrian traffic while light signals on the bridge approaches control approaching waterway traffic.

The SIL assessment was undertaken by DNV-GL, a global accredited management certification organisation, on behalf of SVS.

Commenting on the project Smart Video & Sensing’s managing director Peter Eccleson said “The project was a big challenge for us. Safety takes precedence and applying principles of the Safety Integrity Level to a bridge operation was innovative.

“This is the first system of its type in the UK and we believe the first of its type in Europe to meet SIL2 accreditation requirements. It is a huge endorsement of the design, integration and delivery credentials of our company.”

Darren Parkinson of the Canal & River Trust added: “The success of Sandfield Bridge will play an important part in influencing future plans and decisions to implement similar systems on other bridges in the future.”