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Radio Frequency Speed Bumps for Near-Zero Speed Zone Control in Nigeria

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Document pages: 8 pages

Abstract: Over speeding is an important problem in Nigeria. The Nigerian Federal RoadSafety Commission report shows that over speeding is directly responsible forover 50 percent of road crashes in the country. Speed bumps particularly onhighways have not proved to be the solution; they rather contribute more to theproblem. Based the advent of the dedicated short range communications (DSRC)systems defined by the IEEE 802.11p standard, we proposed a radio frequencybased speed bump to mimic the operation of traditional speed breakers. Themodel consists of a roadside unit and an in-vehicle unit that works with thealready installed speed limiter in vehicles. In our work, we showed that the RFbased model is able to decelerate the vehicle at a recommended rate of 10 m s2over a convenient stopping distance of 80 m. Our work also showed that signalstrength based adaptive speed limiter systems can be used as a reliablesubstitute to GPS thus eradicating the need for additional hardware in thedesign.

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