To provide a method for controlling traffic by which the occurrence of traffic accidents resulting in injury or death caused by vehicles can be reduced and, in addition, the safe movement and management of vehicles can be realized.

In this method for controlling traffic utilizing the encoding of a wave absorber marking tape, traffic control is performed by producing a wave absorbing pattern by means of a wave absorber formed by laminating one or more wave absorbing layers and heat transfer converting layers upon another and causing the drivers of the vehicles to read the pattern after the pattern is encoded and to act on a reaction mechanisms.