Systems for managing and monitoring fleets are of great use nowadays due to their ability of controlling and visualizing in maps the routes assigned to their fleets with GPS (Global Positioning Systems) devices. These systems provide lot of usability to their environments because they improve the way that the workers utilize vehicles in fleets. They have helped the enterprises to detect delayed deliveries, routes detours, urgent maintenance reports and oil saving. In Cuba the system used by majority of enterprises was one that does not make route monitoring during vehicles trip making almost impossible to control if there was any inconvenience during the trajectory of the vehicle, causing the loss of several minutes and even hours to help the broken vehicle to get back in service again. In this paper a proposal to fix this is made by using coordinates taken from a GPS device and stored in KML or GPRMC format files. The system besides will allow supervisors the creation of routes and areas assigned to vehicles in fleets, in which the behavior of the vehicle will be reflected lunching alarms when the vehicle incurs in detouring problem and even in an over - speed problem. Also all the irregularities detected during a movement of vehicle will be registered in a database for supervisor revising purpouses.