An Air Quality and Environmental Monitoring outstation is based on a typical Weigh-in-Motion (WIM) site. The system has been in developed in conjunction with the European project Eureka Logchain Footprint ∑!2486. The projects aim was to develop a method to relate the environmental footprint of a vehicle to the lifetime cost of maintaining the infrastructure and the environment. 

TDC Systems were invited to develop a system capable of capturing such data in the UK.  During the project four Footprint monitoring sites (FMS) were installed on roads in Europe, three in the UK and one in Switzerland.  All three UK sites were installed using HI-TRAC® 100+ classifiers.

The environmental collection equipment is located on a pole adjacent to the WIM array. This includes a microphone, anemometer and a moisture gauge.  All of this equipment is interfaced with the HI-TRAC® 100+ to append the environmental data alongside each vehicle by vehicle (VBV) record.

TDC have further developed the capability of the FMS by adding a device that collects gaseous emissions (No2, So2 and Pm10).  Although data are collected every five minutes, this is also appended to the VBV record.