Research Article

A Method for Traffic Calming Using Radio Transmitter

Table 4

The recorded speed when a message is transmitted.

StatusBefore message transmission
(upstream area)
After message transmission
(downstream area)
FrequencyFrequency percentage

Status 1Exceeding the speed limitObserving the speed limit236 vehicles46.5
Status 2Exceeding the speed limitExceeding the speed limit147 vehicles28.9
Status 3Observing the speed limitExceeding the speed limit16 vehicles3.1
Status 4Observing the speed limitObserving the speed limit109 vehicles21.5