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Study on Route Optimization of Vehicles in Entering and Departuring Port

Author: RenPingHua
Tutor: SunJiaQing；ZhangHe
School: Dalian Maritime University
Course: Transportation Planning and Management
Keywords: Intelligent logistics scheduling Traffic flow information Real-time vehicle -induced Path Optimization Travel Time Prediction
CLC: U116.2
Type: Master's thesis
Year: 2008
Downloads: 256
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Abstract

Port Intelligent logistics scheduling system as the port logistics system is an important part of the port logistics system on the one hand should be adapted to other subsystems, but also can not be divorced urban transport systems exist independently. Therefore, it is necessary to establish urban road network based on real-time traffic information intelligent port logistics scheduling systems to solve urban traffic and congestion growing increasingly tense as well as ports and land logistics needs of customers in small quantities, multi-frequency, just in time, diverse of requirements. Vehicle guidance system as an intelligent logistics scheduling system is an important component of vehicle transport logistics enterprises to solve the existing problem of the most effective method. It is the use of advanced communication technologies for logistics vehicles to provide real-time traffic information and guidance necessary logistics vehicles traveling along the best route to reduce vehicle travel time on the road and ease traffic congestion, the logistics vehicles to reach quickly and efficiently destination. In real-time vehicle guidance system, the path optimization module real-time vehicle guidance system is the core part of path optimization guidance system determines the extent of the pros and cons. This paper describes the port logistics scheduling system and the relationship between port transportation system, intelligent building of the port logistics vehicle scheduling system subsystems real-induced structural framework, elaborated induced positioning method taken from the surface transportation system to obtain real-time traffic information control , Port Logistics dispatch center in travel time prediction and extract the best path for wireless data communications and the role of other issues onboard unit discusses path optimization in the induction system, the role and characteristics. Secondly, it analyzes the characteristics of port logistics scheduling, which proposes two road network structure - hierarchical and non-hierarchical road network road network. In the road network structure, based on the travel time in order to predict the vehicle road resistance weights as the input path optimization model, this paper analyzes the logistics scheduling system suitable port intelligent induction of several real-time vehicle travel time prediction methods, and part way through Dalian network traffic information using a predictive model to complete travel time predictions. Then introduce suitable port real-time intelligent logistics vehicle scheduling system induced optimal path algorithm, combined with the structural characteristics of the urban road network and port scheduling features designed for the port real-time intelligent logistics vehicle scheduling system induced path optimization model, using predicted vehicle travel time Inspection of the model. Finally, the port real-time intelligent logistics vehicle scheduling system induced path optimization made a complete evaluation. In this paper, two kinds of road network structure, built port logistics scheduling real-time intelligent vehicle subsystem induced structural framework for forecasting models and optimization models discuss research and the establishment of path optimization algorithm and evaluation made on their shipping enterprises logistics scheduling and urban traffic control has some theoretical significance.

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