| 摘要 |
PURPOSE:To improve the efficiency of communication among cities by providing required communication stations in required positions of a driveway and laying optical cables, which are connected to individual domestic cities, under the driveway. CONSTITUTION:Master stations, slave stations, branch stations, repeating stations, radio exchanges, etc. are provided in required positions of a toll road network, and optical communication cables are protected by jacketing and are laid in end parts of road bed faces on or underground to connect individual stations to one another. Optical communication, radio exchange communication, etc. are combined to generate easily a communication line network of exclusive use for information or general public use for communicating individual cities in all domestic regions to one another without the influence upon the essential function for traffic. |
