North Sumatra high-risk railway level crossings. Unprotected at-grade crossings with no barriers and no warning lights — filterable by risk level.
North Sumatra high-risk railway level crossings and grade crossings: unprotected at-grade intersections with no barriers and no warning lights, where road users must judge safety for themselves. Particularly hazardous on high-frequency or high-speed rail lines where reaction time is limited. Medium-risk crossings have lights but no barriers; low-risk crossings have full barriers. The distribution of high-risk crossings reveals where railway safety investment is most urgently needed — typically on older rural lines, industrial branches and networks with less advanced upgrade programmes.