Research Project – Virtual Variable Message Signs

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Virtual Variable Message Signs

This was a project for the DfT, Oxfordshire County Council and Bristol City Council exploring the practicalities of the use of Virtual VMS/IVS and in particular developing a specification for an effective interface to publish IVS out of local authority and other traffic management systems.

The project identified the ECo-AT - DATEX II profile for IVI as a recommended interface with guidelines for update latency, message categorisation and positional data.

The report also identified material changes around required VMS data, definition of Zone of Display, Zone of relevance, clarity of purpose, (what category is this message, what is its purpose) that are required to effectively support IVS.

The work included a practical demonstration of the integrated use of IVS across two local and two national traffic authorities in the UK

IVS - National Highways VMS on the M4 near Bristol

Virtual Variable Message Signs

The project was led by Amey and supported by KL Systems and White Willow Consulting with input from Eloy.

KL Systems provided the technology for field trials and demonstrations as well as researching and contributing to the report in conjunction with Amey and White Willow Consulting.

The technology trial used KL Systems Cloud/ Data Hub based connected car eco system and integrated VMS from Oxfordshire County Council Bristol City Council, National Highways and Traffic Wales as well as providing a GUI to create Virtual VMS.

The result was a unified system across the two authorities integrating the display of national and local VMS together with pure virtual VMS. Android Auto, CarPlay and standard apps were used to display in-vehicle.

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