VEHICLE DETECTOR AND VEHICLE DETECTION METHOD
AXLE DETECTION DEVICE AND AXLE DETECTION SYSTEM
ROADSIDE ANTENNA, RADIO COMMUNICATION SYSTEM, AND METHOD FOR INSTALLING ROADSIDE ANTENNA
VEHICLE MONITORING DEVICE, VEHICLE MONITORING METHOD, AND PROGRAM
VEHICLE DETECTOR, TOLL COLLECTION SYSTEM, VEHICLE DETECTION METHOD, AND PROGRAM
AXLE NUMBER DETECTION DEVICE, TOLL COLLECTION SYSTEM, AXLE NUMBER DETECTION METHOD, AND PROGRAM
VEHICLE LENGTH MEASUREMENT DEVICE AND VEHICLE LENGTH MEASUREMENT METHOD
VEHICLE DETECTION DEVICE AND VEHICLE DETECTION METHOD
VEHICLE DETECTOR, VEHICLE DETECTION METHOD, AND PROGRAM
VEHICLE DETECTOR, VEHICLE DETECTION METHOD, AND PROGRAM