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By identifying the status of traffic congestion, the irrationality of road network planning can be made clear to propose comprehensive optimization measures. This paper used traffic congestion spatio-temporal identification model considering the changing nature of traffic congestion with time and space, to reflect the traffic congestion degree of a section, a route and a whole network. The application...
This paper proposes a method for a real-time classification of the absolute driving style using three levels of sportiveness: calm, normal and sporty. The algorithm is based on a physical gg-plot-based approach and on a novel manouvre detection algorithm. The method makes use of standard vehicle signals which can be also provided by an external IMU+GPS system. Experimental results show the effectiveness...
This study highlights the importance to develop a scientific mathematical allocation model that is operable and practicable, explores the relationship between vehicle fuel consumption and the various influencing factors. Apart from the factors recognized in the previous studies, such as cylinder, displacement and weight, this study addresses the significance of the involvement of road and environmental...
We present a density-based Data Pruning method for Deep Reinforcement Learning (DRL) to improve learning stability and long-term memory in rare situations. The method controls density distribution in the experience pool by discarding high correlation data and preserving rare and unique data. We apply our method to Deep Q-networks (DQN) and Deep Deterministic Policy Gradients (DDPG) for testing in...
some urban corridors see serious congestion during rush hours, but travel time is still predictable; while others may not suffer from heavy congestion but exhibit high travel time unreliability. The latter case usually makes motorists more frustrated. Moreover, empirical studies show that the level of unreliability varies over time of day. Using the collected travel time and travel speed data, this...
An approach on the real-time assessment of the traffic state in freeway is developed based on the Variation Coefficient and Fuzzy Comprehensive Evaluation method. Space mean speed and space occupancy are selected as evaluation indexes of the model, according to the relationship between traffic flow parameters and traffic operation states. The indexes weight is decided by the Variation Coefficient...
This paper describes the concept of address elements and proposes a fuzzy Chinese-geocoding method via using fuzzy mathematics principle. The segmentation accuracy is improved by employed elements identification mechanism techniques, moreover, the best matching result is derived by calculating the MI indicator. The simulation error related to re-matched method is obtained through quality control module...
The rapid development of information technology and the severe competition of the bank industry make the internet banking become a new service channel for Chinese banks to acquire new customers and to retain the existing customers. Because the larger part of the profit in internet banking is from the existing customers, Chinese banks have been making their great efforts in order to win the market...
Driving assistance systems are progressively introduced to enhance safety and comfort in passenger vehicles. They increasingly rely on information stored in digital navigation maps. However maps can be obsolete or contain errors, resulting in malfunctions of context based driving assistance systems and possibly generating hazardous situations. This paper aims at making the vehicle able to detect and...
With the development of economy and society, China's highway construction has made a great achievement, but there are also some factors related to project design that affected the quality of the projects. In order to improve the quality of the design and analyze the changes in cost and so on, it is necessary to have a post-evaluation of highway project design. From the theoretical and practical point...
Based on the deterioration mechanism of expressway pavement, the effect of highway quality (abbr. EHQ) is added to the impact factors of expressway pavement maintenance, and grey fixed-weight clustering method is used to analysis and calculate it, taking some of expressways in Shandong province as example. The simulation and prediction of expressway pavement current repair is improved to be more accurate...
Current industry standard "Highway Performance Assessment Standards" in china is proposed to investigate and evaluate the highway pavement quality, including each individual index of pavement performance and its comprehensive evaluation method. However, this comprehensive evaluation method is ineffective in certain particular conditions. In this paper, a new comprehensive evaluation method...
There isn't a unified pavement preventive maintenance road condition standard both at home and abroad till now, in view of that, macro and micro road condition standard for expressway asphalt pavement preventive maintenance is established, among which macro standard is under the promise of PSSI≥83, and is under the control standard of 82≤PCI≪88, 88≤RQI≪93, 85≤SRI≪90. Its determinative process, the...
A new urbanization evaluating method using on remote sensing data was introduced, with the combination of remote measurements (e.g., ALOS and ASTER) and statistic data, and the Middle cities in Liaoning province of Northeast China was taken as a case study, which is the largest economic nuclear area and with the highest urbanization development rate in northeast China. The evaluation index system...
The optimal route guidance, is an important part of ITS. The factors influencing route guidance, such as the position of vehicles, the information on road conditions, the free parking spaces, etc., are dynamically variable. These dynamically factors are constrained conditions. How to construct the optimal model of vehicle route guidance under such constrained conditions is a difficulty that puzzles...
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