“…The combination of nighttime driving and cellphone use appears to be strongly influential for SVROR crashes. Poor visibility because of unlighted (that is, absence of streetlights) dark conditions poses a serious risk, especially away from intersections (rules 10,12,16,19,25,27) on two-way roads with no physical separation (rules 10,12,19,23,24,30). Even with the presence of streetlights at intersections (rules 3,5,6,8,11,20), crashes occurred within 500 ft of intersections.…”