"button_operated"=>"yes","traffic_signals:direction"=>"backward","traffic_signals:sound"=>"no","traffic_signals:vibration"=>"no"
"button_operated"=>"yes","traffic_signals:direction"=>"forward","traffic_signals:sound"=>"no","traffic_signals:vibration"=>"no"
"traffic_signals"=>"signal","traffic_signals:direction"=>"backward"