Old folks, handicapped people and children should be in chaperonage when riding.
由于索道为循环式，老年人、残疾人士及儿童需有他人陪护乘坐。
Traffic signal timing optimization of unparallel flow at intersection based on chaperonage phase;
信号配时优化是提高交叉口通行能力，改善路网通行状况的重要途径。
Traffic signal timing optimization of unparallel flow at intersection based on chaperonage phase;
信号配时优化是提高交叉口通行能力，改善路网通行状况的重要途径。
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