청계천복원사업 착공 전후 교통영향 및 통행행태분석

초록

For restoring the covered Cheonggye Stream traversing at the center of Seoul, the 5.8km Cheonggy Elevated highway was closed and Cheonggye Street covering the stream was reduced from 4 lanes to 2 lanes in each direction on July 1st, 2003. There were many concerns among citizens that the traffic congestion in the CBD would be worsening because of the serious loss of road capacity. The monitoring results of traffic situation show that the alternative streets to Cheonggye highway experienced a minor growth of traffic volumes. This finding means that some auto-drivers changed their travel routes to minimize the time loss. Also, it appears that some drivers changed their departure times. As shown in the volume counts by one hour, the share of 7-8 o'clock departure increased while 8-9 o'clock's decreased. Especially, the traffic volume between 7:00 and 7:15 recorded the most drastic increases. The mode shift is another change adopted by the citizens surveyed. The subway users increased continuously for two weeks, as opposed to the number of bus users. It is because the punctuality of subway became the far more attractive element when people make decisions on travel mode. The 1,500 sample survey of commuters and residents affected directly by the construction work restated that there were clear changes among citizens in travel mode and departure time. The study results tell us that the future of urban transportation policy should be directed more toward changing travel behavior rather than toward the facility construction and traffic operation.

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