{"id":647,"date":"2016-12-02T12:48:10","date_gmt":"2016-12-02T11:48:10","guid":{"rendered":"https:\/\/www.prover.com\/?post_type=avada_portfolio&p=647"},"modified":"2025-01-13T09:53:02","modified_gmt":"2025-01-13T08:53:02","slug":"tvb","status":"publish","type":"avada_portfolio","link":"https:\/\/www.prover.com\/references\/tvb\/","title":{"rendered":"Interlocking software for Light-rail, Stockholm"},"content":{"rendered":"

\"Purpose\"<\/span><\/div><\/div><\/div>
Purpose<\/h5><\/div><\/div><\/div><\/div>

Reduce time-to-market for development and safety approval of interlocking software. Establish sign-off safety verification in compliance of CENELEC EN 50128:2011 SIL4.<\/p>\n<\/div><\/div><\/div>

\"Client\"<\/span><\/div><\/div><\/div>
Client<\/h5><\/div><\/div><\/div><\/div>

Infrastructure Manager Stockholm Metro (SL)<\/p>\n<\/div><\/div><\/div>

\"Signaling<\/span><\/div><\/div><\/div>
Signaling system<\/h5><\/div><\/div><\/div><\/div>

Interlocking systems, based on the VHLC and Tempo platforms, by General Electric Transportation (now Alstom)<\/p>\n<\/div><\/div><\/div><\/div><\/div>

Reduce time-to-market for development and V&V of the application specific software for the interlocking systems<\/h2><\/div><\/div><\/div>
<\/div><\/div>

In this project, Prover provided interlocking software to GE under a turn-key supply. The purpose was to reduce the calendar time required to develop, validate and verify interlocking software for the 10+ interlocking systems of the Solna and Sickla light rail lines in downtown Stockholm.<\/p>\n

In this project, GE was responsible for defining the signaling principles, and Prover supplied interlocking software based on the formalization of those principles and using the Prover iLock software tool suite for the generation and checking of each application.<\/p>\n

During the course of the project, the customer decided to change the hardware platform to a new platform called Tempo; since the Prover iLock tool suite is not tied to any particular target language, it was straight-forward to support the new Tempo target.<\/p>\n<\/div>

\"logo<\/span><\/div><\/div><\/div>

The solution Prover used for the supply was based on:<\/strong><\/p>\n<\/div>