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Çѱ¹µµ·ÎÇÐȸ / v.9, no.4, 2007³â, pp.21-32
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( A Delay and Sensitivity of Delay Analysis for Varying Start of Green Time at Signalized Intersections: Focused on through traffic ) |
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| ½ÅÈ£±³Â÷·ÎÀÇ ±³Åë·ù ÇØ¼®À» À§ÇØ ³Î¸® »ç¿ëµÇ´Â ¼±Çü¸ðÇü(Vertical queueing model)Àº ÀÚÀ¯¼Óµµ¿¡ µû¶ó ¸ðµç Â÷·®ÀÌ Á¤Áö¼±¿¡ µµÂøÇϰí, ´ë±âÇà·ÄÀº Á¤Áö¼±¿¡¼ ¼öÁ÷À¸·Î Çü¼ºµÈ´Ù°í °¡Á¤ÇÑ´Ù. ÀÌ·¯ÇÑ ¸ðÇüÀÚüÀÇ ´Ü¼ø¼º ¶§¹®¿¡ ¼±µÎÂ÷·®Àº ÀÚÀ¯¼Óµµ¿Í °¡¼Óµµ¿¡ ÀÇÇØ °è»êµÈ Ãâ¹ßÀ¯È¿³ì»ö½Ã°£(start of effective green time)¿¡ Á¤Áö¼±À» Åë°úÇÏ°Ô µÇ¸ç, ¸ðµç ÃßÁ¾Â÷·®Àº µ¿ÀÏÇÑ ±ËÀûÀ» °®°Ô µÈ´Ù°í °¡Á¤ÇÑ´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº Vertical queueing ¸ðÇüÀÇ ´Ü¼ø¼º°ú ºñÇö½Ç¼ºÀ» º¸¿ÏÇϱâ À§ÇØ ¹°¸®ÇÐÀÇ Kinematic¼ö½ÄÀ» ÀÀ¿ëÇÏ¿© ½ÅÈ£±³Â÷·ÎÀÇ Ãâ¹ß³ì»ö½Ã°£(start of green time)À» ÇÔ¼ö·Î ÇÑ ÀÚµ¿Â÷ÃßÁ¾¸ðÇü(Kinematic Car-following model at Signalized intersections: KCS traffic model)À» °³¹ßÇϰí, ÀÌ¿¡ µû¸¥ Áöü ¹× Áöü¹Î°¨µµ¸¦ ºñ±³ÇÔ¿¡ ÀÖ´Ù. Ãâ¹ß³ì»ö½Ã°£ º¯È¿¡ µû¸¥ ÁöüºÐ¼®°á°ú Vertical queueing ¸ðÇü¿¡¼ »êÃâµÈ Áöü°ªÀÌ KCS ±³Åë·ù¸ðÇü¿¡ ºñÇØ °ú´ÙÇÏ°Ô ÃßÁ¤µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¹Ý¸é, Áöü¹Î°¨µµ ºÐ¼® °á°ú KCS ±³Åë·ù¸ðÇüÀÌ Vertical queueing ¸ðÇü¿¡ ºñÇØ ¹Î°¨ÇÏ°Ô º¯ÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. |
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| The linear traffic model(Vertical queueing model) that is adopted widely in traffic flow estimation assumes that all vehicles have the identical motion before joining a queue at the stop-line. Thus, a queue is supposed to form vertically not horizontally. Due to the simplicity of this model, the departure time of the leading vehicle is assumed to coincide with the start of effective green time. Thus, the delay estimates given by the Vertical queueing model is not always realistic. This paper explores a microscopic traffic model(a Kinematic Car-following model at Signalised intersections: a KCS traffic model) based on the one dimensional Kinematic equations in physics. A comparative evaluation in delay and sensitivity of delay difference between the KCS traffic model and the previously known Vertical queueing model is presented. The results show that the delay estimate in the Vertical queueing model is always greater than or equal to the KCS traffic model; however, the sensitivity of delay in the KCS traffic model is greater than the Vertical queueing model. |
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| Ű¿öµå |
| ¼±Çü¸ðÇü;Ãâ¹ßÀ¯È¿³ì»ö½Ã°£;KCS±³Åë·ù¸ðÇü;Ãâ¹ß³ì»ö½Ã°£;Áöü;Áöü¹Î°¨µµ;linear traffic mode;start of effective green time;KCS traffic model;start of green time;delay;sensitivity of delay; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.9, no.4, 2007³â, pp.21-32
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200706414147706)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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