PROBLEM TO BE SOLVED: To provide a road traffic control system and a road traffic control apparatus, which are capable of determining a path of a traffic fault event that encompasses plural routes without needing to pre-generate a connecting route pattern.SOLUTION: A system performs: storing path determination information, every time receiving, from measurement devices disposed on a route at given intervals, present congestion information at the position of an applicable device, the applicable route, and the applicable position, the path determination information containing the route where the measurement device that has detected the congestion information is disposed; determining that a congestion has occurred in a new route in a case where the congestion information is received, where the position of the measurement device is determined to be at a position of a junction on the basis of the position, and where a route contained in next-received congestion information is determined to be not the same route co
