According to highway alignment, environment and psychological reaction of drivers, the minimum lengths of speed zone and transition portion are presented.
根据公路线形、周围环境和驾驶员的心理要求，确定了限速区及过渡段的长度。
According to highway alignment, environment and psychological reaction of drivers, the minimum lengths of speed zone and transition portion are presented.
根据公路线形、周围环境和驾驶员的心理要求，确定了限速区及过渡段的长度。
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