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Çѱ¹µµ·ÎÇÐȸ / v.11, no.2, 2009³â, pp.45-54
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°ÇÑ ¹Ù¶÷ÀÌ °í¼Óµµ·Î Â÷·® ÁÖÇà ¾ÈÀü¼º¿¡ ¹ÌÄ¡´Â ¿µÇ⠺м®
( The Effect of the Gust of Wind on Safety of Driving Vehicles in Higher Speed Freeways ) |
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| »ê¾ÇÁö¿ªÀ̳ª ÇØ¾ÈÁö¿ªÀ» Åë°úÇÏ´Â µµ·ÎÀÇ °æ¿ì °ÇÑ ¹Ù¶÷ÀÌ ºÎ´Â ÁöÁ¡ÀÌ ÀÖ°í, ÀÌ·¯ÇÑ ÁöÁ¡¿¡¼ Â÷·®ÀÌ ¹Ù¶÷¿¡ ÀÇÇØ ÀüµµÇϰųª ¿·À¸·Î ¹æÇâÀÌ ¹Ù²ð ¼ö ÀÖ´Ù. ÇöÇà µµ·Î ¼³°è ±âÁØ¿¡¼ °ÇÑ ¹Ù¶÷ÀÇ ¿µÇâÀº ¹«½ÃÇϰí ÀÖÁö¸¸, ÇâÈÄ °í¼Óµµ·Î ¼³°è¼Óµµ°¡ ³ô¾ÆÁö°Ô µÇ¸é °ÇÑ ¹Ù¶÷ÀÇ ¿µÇâÀº ´õ¿í Ä¿Áö°Ô µÈ´Ù. º» ¿¬±¸¿¡¼´Â Ãʰí¼Ó ÁÖÇà »óÅ·ΠÁÖÇàÇÏ´Â Â÷·®¿¡ °ÇÑ ¹Ù¶÷ÀÌ ºÎ´Â °æ¿ì Â÷·®ÀÇ Àüµµ¿Í ÀÌÅ»ÀÇ °ü°è½ÄÀ» ÅëÇØ ±× °¡´É¼º¿¡ ´ëÇØ ºÐ¼®Çß´Ù. ÀÌ ºÐ¼®¿¡¼ Â÷·®ÀÇ Á¾·ù, °î¼±¹Ý°æ, ¿îÀüÀÚµéÀÇ °ÇÑ ¹Ù¶÷¿¡ ´ëÀÀÇÏ´Â ¼Ò¿ä ½Ã°£, Â÷·® ÁÖÇà¼Óµµ ±×¸®°í dz¼ÓÀ» ´Þ¸®ÇÏ¸é¼ ¼ö½ÄÀûÀ¸·Î Àüµµ¿Í ÀÌÅ»·®À» »êÃâÇß´Ù. ±× ºÐ¼® °á°ú Â÷·®ÀÇ Àüµµ Ãø¸é¿¡¼´Â dz¼Ó 50m/s À̳»¿¡¼ °î¼±¹Ý°æÀÌ 600m ÀÌ»óÀ̸é Àüµµ À§ÇèÀº ¾ø´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. Â÷·®ÀÇ ÀÌÅ» Ãø¸é¿¡¼´Â dz¼ÓÀÌ 15.0m/s ÀÌ»óÀÏ °æ¿ì Â÷·®ÀÇ ¼Óµµ¸¦ Á¦ÇÑ ÇÒ Çʿ䰡 ÀÖÀ¸¸ç dz¼ÓÀÌ 25.0m/s ÀÌ»óÀÏ °æ¿ì ÅëÇàÁ¦ÇÑÀ» ÇÒ Çʿ䰡 ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. º» ¿¬±¸ °á°ú´Â ÇâÈÄ µµ·Î ¼³°è ±âÁØÀ» Á¶Á¤ÇÏ´Â °æ¿ì Âü°íÇÒ ¸¸Çϸç, ƯÈ÷ °ÇÑ ¹Ù¶÷ÀÌ ÀÚÁÖ ºÎ´Â Áö¿ªÀ» Åë°úÇÏ´Â °í±Ô°Ý °í¼Óµµ·Î¸¦ °Ç¼³ÇÏ´Â °æ¿ì ¸Å¿ì À¯¿ëÇÑ °á°ú°¡ µÉ °ÍÀÌ´Ù. |
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| Despite vehicle instability problems caused by gusts of wind on freeways located in mountain or seaside areas, current national highway design standards overlook their detrimental effects, and if higher design speed freeways being proposed now by the government are in operation, the strong effect of the gust of wind becomes a highway alignment design issue. This paper presents the vehicle movements and their resulting safety effects by checking vehicle sliding and overturn based on vehicle dynamic analysis for the case when a gust of wind blows to vehicles negotiating curves on higher speed freeways. In this analysis, vehicle types, curve radii, motorist responsive time to vehicle driving path changes, and vehicle speeds are systematically arranged to get vehicle sliding and overturn values in each different conditions. The results showed that there were little overturn possibilities when wind speed would stay in 50m/sec with higher than 600 meter curve radii. Interestingly it was also found in sliding checks that, although being safe at less than 15.0m/sec wind speed levels, there appeared the need of vehicle travel prohibitions when the wind speed could exceed 25.0m/sec level. The findings in this research is of information in future higher speed freeway designs, and particularly useful when designing freeways passing frequent gust wind areas. |
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| Ű¿öµå |
| °ÇÑ ¹Ù¶÷;°í±Ô°Ý °í¼Óµµ·Î;Â÷·® ÀÌÅ»;Â÷·® Àüµµ;gust of wind;higher speed freeway;vehicle sliding;vehicle overturn;highway design; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.11, no.2, 2009³â, pp.45-54
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200921140045857)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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