Air Quality & Weather Systems

The Danish Road Directorate and Daluiso have developed a new type of road sign to make road works and maintenance tasks more efficient. Called 'swap signs', their function is to flap open/shut near road works, spring cleaning or grass cutting by contractors.

Jon Tarleton, Quixote Transportation Technologies, Inc., talks about developments in mobile weather information gathering Quixote Transportation Technologies, Inc. (QTT) is promoting the greater use of mobile technologies to provide infill between fixed Road Weather Information System (RWIS) infrastructure. It is, the company says, a means of reducing the expense of providing comprehensive, network-wide coverage, particularly in geographic locations where the sheer number of centreline miles causes cost to

Tools to support operational decisions in winter maintenance can remove subjectivity and increase efficiency; Vaisala's Danny Johns talks about latest developments Even the presence of trees at the roadside can have an effect on temperature An effective Road Weather Information System (RWIS) network can save a local road authority or jurisdiction tens of thousands of dollars or Euros'-worth of labour and consumables in a single night. Get those winter maintenance operations right over just three or four nig

The AQM 60 from Quixote Transportation Technologies (QTT) is an air quality monitoring system designed to measure a wide range of air quality parameters in a cost-effective, compact package. The system measures the top six pollutants considered harmful by the US Environmental Protection Agency and integrates with road weather information systems, advisory radio systems and ITS software platforms to provide weather, traffic and air quality data on one system. As QTT points out, monitoring air quality data ne

David Crawford investigates the potential of new projection technology. Fifty years on from its invention of the microchip, US company Texas Instruments (TI) has compressed the technology into a surface area of just 4.3mm. As such, it forms the heart of a new Pico Digital Light Processing (DLP) system that is set to transform travel information delivery for millions of users on the move - by making it projectable.

High Sierra Electronics is claiming a unique approach to Road Weather Information Systems (RWIS) with the launch of its newest product, the Model 5470 NTCIP Mini-RWIS Remote Processing Unit. This device is the heart of a non-proprietary, open architecture NTCIP-compliant Environmental Sensor Station (ESS), designed for primary deployment within existing or new ATC cabinets and Dynamic Message Sign (DMS) cabinets. The company says this approach allows simpler implementation at a lower cost than traditional i

Traffic management centres (TMC) have traditionally served to provide surveillance and responses to traffic incidents and recurring and non-recurring changes in road networks. Typically, a TMC collected field data from the roadway and transit infrastructure and provided the integration necessary for operators to see what was happening and then coordinate a response. Standard operating procedures (SOPs) guided operators on how to respond to a given situation. It eventually became impractical for TMC operat