What is the fine-grained topic of the following text: The rolling-stock is equipped with monitoring system on the basis of GPS and the mobile communication which allows to get the operational data about the location of the road trucks and to regulate the transportation process in due time.Using our own vehicles allows us to say with confidence that the risks of failure to provide vehicles, untimely providing, loss of cargo, additions and idle periods are minimized. Only return the topic.
GPS and Mobile Communication-based Monitoring System for Transport Vehicles