Road safety and traffic management have always been a major concern for government authorities, especially as road accident and traffic congestion have been steadily increasing.

These problems reduce efficiency of transportation infrastructure and local governments constantly have to make road technology improvements to make roads safer and smarter.

Intelligent transport systems (ITS) are increasingly implemented as a response to problems caused by traffic congestion and for many government authorities maintaining ITS equipment is very costly. For this reason it is vital for roadside equipment to be well designed and carefully manufactured to have reliable performance and long service life.