Validating a standard for
Microwave or infrared communications for vehicle to roadside
communication have been in use for a number of years. However, a different scenario is now
emerging with the advent of much larger, sometimes nationwide, implementations. Earlier
systems addressed the needs of a limited category of drivers, but they will in future
target a majority of road users and adhere to common standards.
The VASCO project, part of the TAP programme, is validating a Dedicated Short Range
Communications (DSRC) standard, which is proposed as suitable technology to support the
wider implementation of road transport telematics services. Examples are automatic fee
collection, access control, traffic and travel information, dynamic route guidance, and so
on. The final result is intended to be validation of DSRC equipment from European
manufacturers, using two different media (5.8 GHz and infra-red). This equipment is
designed to comply with the proposed CEN TC 278 standards. The work covers laboratory
measurements of DSRC equipment parameters and testing in various traffic environments,
including conditions of multi-lane traffic, multi-application, windscreen attenuation,
extreme weather, etc.
The project results are targeted at organisations such as city planners, road
authorities, motorway operators and fleet owners, as well as car drivers. Early
availability of validated and conformant DSRC elements will give users confidence that
interoperability and compatibility are assured, whatever the source of their equipment.
Suppliers will also benefit, from low-risk manufacturing and confident marketing for an
The VASCO project stand gives an overview of the three-step approach being used to
validate the DSRC standard. Conformance testing is being demonstrated, making use of a
Reference DSRC beacon developed within the project. On-board units, from several
manufacturers, are available for examination.