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º» ¿¬±¸¿¡¼­´Â °ËÁö±â¿¡¼­ ¼öÁý°¡´ÉÇÑ ±³ÅëÁ¤º¸¸¦ ÀÌ¿ëÇÑ
´ë±âÇà·ÄÀÌ·Ð ±â¹Ý °¡º¯¼ÓµµÁ¦¾î ¿î¿µ¸ðÇü°ú ±× È¿°ú¸¦ Á¦½ÃÇÏ¿´´Ù. ¸ðÇüºÐ¼®°á°ú °¡º¯¼ÓµµÁ¦¾î¸¦ ½Ç½ÃÇÒ ¶§ ÃÑ Áöü°¡ 3°³ ¿µ¿ªÀ¸·Î ³ª´µ¾î ¹ß»ýÇϸç, ÃÑ ÅëÇà½Ã°£ÀÇ Áõ°¨¾øÀÌ ÃÑ Áöü°¡ °¨¼ÒÇÏ¿´´Ù. ÀÌ¿Í °°Àº °¡º¯¼ÓµµÁ¦¾î ¸ðÇüÀÇ È¿°ú´Â ÀÌ·ÐÀû ºÐ¼® ÈÄ VISSIM ¹Ì½Ã ½Ã¹Ä·¹ÀÌÅ͸¦ ÅëÇÏ¿© °ËÁõÇÏ¿´À¸¸ç, SSAMÀ» ÀÌ¿ëÇÑ °íÀ§Çè »óÃæ°Ç¼ö ºÐ¼®ÀÌ ÀÌ·ç¾îÁ³´Ù. ºÐ¼®°á°ú ÃÑ Áöü°¡ °¨¼ÒÇÑ °ÍÀ¸·Î ³ªÅ¸³µÀ¸³ª, ÃÑ ÅëÇà½Ã°£ÀÌ µ¿ÀÏÇÏ°í ¿îÀüÀÚÀÇ Èñ¸ÁÅëÇà¼Óµµ´Â °¡º¯¼ÓµµÁ¦¾î À¯¹«¿Í °ü°è¾øÀÌ µ¿ÀÏÇϹǷΠ½ÇÁ¦ ÃÑ Áöü°¡ ÁÙ¾îµç °ÍÀ¸·Î º¼ ¼ö ¾ø´Ù. ÇÏÁö¸¸ À§ °¡º¯¼ÓµµÁ¦¾î ¸ðÇüÀº ÀÚÀ¯¼Óµµ À¯Áö½Ã°£À» Áõ°¡½ÃÅ°°í, ¼ÓµµÆíÂ÷¹ß»ý Áֱ⸦ ´Ã·È´Ù. ÀÌ´Â ¹Ýº¹ÀûÀÎ ÁöÁ¤Ã¼ÀÇ ±Ô¸ð¿ÍȽ¼ö Àú°¨À» ÅëÇØ, »óÇÏ·ùºÎ ±³Åë·ù°£ ¼Óµµ Â÷À̸¦ ÁÙ¿©ÁÜÀ¸·Î½á °íÀ§Çè »óÃæ°Ç¼ö¸¦ ¾à 36.0% Àú°¨ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³­´Ù.Áï, º» ¿¬±¸¿¡¼­ Á¦½ÃÇÑ °¡º¯¼ÓµµÁ¦¾î°ªÀ» ÀÌ¿ëÇÏ¿© °¡º¯¼ÓµµÁ¦¾î¸¦ ½Ç½ÃÇÒ °æ¿ì ÃÑ Áöü¸¦ ÃÖ¼ÒÈ­ÇÔÀ¸·Î½á °íÀ§Çè »óÃæ°Ç¼ö¸¦ Àú°¨ÇÏ´Â ¾ÈÀü¼º Çâ»óÈ¿°ú¸¦ ±â´ëÇÒ ¼ö ÀÖ´Ù.

This study proposed a Variabl
e Speed Limits(VSL) algorithm to use traffic information based on Cumulative Demand-Capacity Analysis and evaluated its performance. According to the analysis result, the total of delay consisted of 3 separate parts. There was no change in total travel time although the total of delay decreased. These effects was analysed theoretically and then, evaluated through VISSIM, a microscopic simulator. VISSIM simulation results show almost same as those of theoretical analysis. Furthermore in SSAM analysis with VISSIM simulation log, the number of high risk collisions decreased 36.0 %. However, the total delay decrease effect is not real meaning of decrease effect because the drivers¡¯ desired speed is same whether the VSL model is operated or not. Nevertheless this VSL model maintains free flow speed for longer and increases the cycle of traffic speed fluctuation. In other words, this is decrease of delay occurrence and scale. The decrease of speed gap between upstream and downstream stabilizes the traffic flow and leads decrease number of high risk collision. In conclusion, we can expect increase of safety through total delay minimization according to this VSL model.   (ÀÌÇÏ »ý·«)

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