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Rain sensors at traffic light for bikers in Gronigen (NL). The green will last longer for bikers in case of rain
Barbara P9
Barbara P9 May 05, 2013
Rain sensors at traffic light for bikers in Gronigen (NL). The green will last longer for bikers in case of rain

I've seen these sensors...

Often 1
Occasionally 2
Rarely 4
Never 7
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