Simply put, traffic signals help regulate the flow of vehicles and pedestrians on roads. They play a critical role in ensuring the safety of all road users and preventing potential gridlocks and obstruction. The way in which traffic signals work can be broken...
The administration of highway projects differs from one country to another, depending upon social, political and economic factors. The design, construction and maintenance of major national primary routes such as motorways or dual carriageways are generally the responsibility of a designated government department...