Following the successful trial of 13 remote traffic control cameras on Italian roads, in use since July 2004, Italian police are set to install a further 16 cameras from Venice in the north to Sicily in the south of the country. The Italian police have also announced where they plan to install this second set of traffic control cameras, which allow police to monitor drivers that breach overtaking rules and who drive in emergency lanes. Italys traffic police has identified a further 150 danger zones throughout Italy that may require similar surveillance. All these devices have so far only been placed on dual carriageways (rather than motorways) to enforce no-overtaking zones for trucks and to stop motorists from using emergency lanes.