Techspan
Challenge
Techspan had won the contract to supply a next generation motorway signage variable messaging system. It needed a design partner that could comply with stringent Highways Agency optical and mechanical specifications. These included viewing angles, illumination contrast and reflectivity and resistant to driving rain, wind loads and impacts from vehicle debris, keeping cool in the sun and de-misting in the cold.
Solution
PDD conceived a structural, louvered chassis within a single component front panel. This provided the required thermal management and optical paths, internal reflection and mechanical structure. Extensive use of optical ray tracing, Finite Element Analysis and 3D CAD helped PDD to optimise this design before making the prototype for in-house tests and to gain external approval.
Result
Techspan commissioned its first batch of signs in Wales ahead of its rivals in England. The Display Modules met all of the demanding requirements and many thousands of units are now deployed.
Client's Comments
"The depth of skills offered within PDD and the wealth of experience meant that our concept ideas turned into reality faster than anticipated. This coupled with excellent communication between PDD and ourselves enabled us to meet demanding deadlines and finish the project to budget."
Techspan
