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Çѱ¹µµ·ÎÇÐȸ / v.10, no.4, 2008³â, pp.235-245
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ÅͳΠÀÔ±¸ºÎ ¾ÈÀü½Ã¼³¹° ¾ÈÀü¼º Áõ´ë¹æ¾È ¿¬±¸
( A Study on Safety Improvement of Safety Devices at Entrance of Expressway Tunnels ) |
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| Since rapidly increase of tunnel with increasing of expressway, the study on safety improvement of safety device at entrance of expressway tunnels is necessary. The existence of tunnel occurs more speed reduction than an upward slope by itself, the collision accident of tunnel entrance causes heavier damage than that of general accident on the road. So, many kinds of safety devices such as poly-ethylene barrier, guard-rail are placed on the road side. But these devices affect the drivers as an obstacle. Although there are various safety devices that are placed at tunnel entrance, this study is related to following 2-cases. One is that the poly-ethylene barrier is placed and the other is that a safety devices is not placed. The reason that these two cases are selected, is that poly-ethylene barrier is usually placed at many tunnel entrances and safety devices can affect the drivers as an obstacle. This study is related to the difference of right-hand side clearance between inside tunnel and outside tunnel, too. The average difference observed car speed and VDS(vehicle detect system) speed nearby the tunnel is analysed. Through the statistical analysis of the average difference, this study suggests an alternatives on safety improvement of safety devices at entrance of expressway tunnels. It is concluded that the small difference of right-hand side clearance is desirable to drivers when a poly-ethylene barrier is placed. And when the difference of right-hand side clearance is large, no safety devices is desirable, and when the difference of right-hand side clearance is small, poly-ethylene barrier should be placed to improve safety. |
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| Ű¿öµå |
| µµ·Î¾ÈÀü¼ºÆò°¡;ÅͳÎ;ÆíÇâÁÖÇà;road safety estimation;tunnel;lane placement; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.10, no.4, 2008³â, pp.235-245
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200806135607968)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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