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M. Teimouri M.R. Delavar S.H. Chavoshi M.R. Malek N. Van de Weghe T. Neutens 《运输规划与技术》2015,38(7):816-831
Ad hoc shared ride trip planning (SRTP) utilizes mobile devices, geo-sensors and wireless networks to match on-the-fly individual travel demand with transport supply. It represents one of many alternatives to single occupancy vehicle use. This paper outlines a SRTP approach via a two-phase algorithm based on user preferences in a time-dependent routing. Whereas current algorithms use minimization of travel time as the only optimization criterion in trip planning, in the framework presented here, the user can specify multiple trip preferences including travel time, walking time, number of transfers between cars and trip length. Various scenarios are simulated in the city of Tehran (Iran) to demonstrate how preference settings affect the routes of ad hoc shared journeys. 相似文献
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王宇 《西安交通大学学报(英文版)》1995,(2)
ENHANCEDNITRICOXIDE(NO)-MEDIATEDVASODILATIONINLOWPOTASSIUMMEDIUMwagnYu;OS.Steinsland,SH.Nelson,AE.Feerick,WE.Johnstonn(Depart?.. 相似文献
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盾构穿越普通软土地层的工程费用计算方法已趋成熟,但对于穿越硬岩段时却无统一明确的计价依据。通过对盾构过硬岩段采用盾构直接掘进,对岩层进行爆破+盾构掘进,矿山法开挖初期支护+盾构空推拼装管片,矿山法开挖初期支护并二次衬砌+盾构空推的4种施工方案分别进行技术探讨,并从工程造价角度对比分析,得出在几种可能的工程环境及条件下可采取的最优可行方案,以供参考。 相似文献
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