Traffic congestion and pollution in many urban areas are the most serious problems facing transportation policy makers, whose effective management polices may be bus priority and congestion pricing.
交通拥挤和污染是目前世界多数大中城市普遍面临的问题，公交优先和拥挤定价是针对该问题的有效管理措施。
The construction of the bus lane in a city may guarantee the priority of public traffic and efficiently promote the volume of passengers.
建设公交专用道可以保证公交车辆优先通行，从而有效提高道路的人流量。
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