The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Few studies have adequately focused on transit optimization transfer with capacity constraint, or provided useful guidance on transfer improvements, which is the writing motivation of this paper. Taking into account the passengers' subjective perception to assess transfer cost and to identify ways to reduce it and with capacity constraint consideration, our treatment of transfer optimization is to...
For a clustered launch vehicle with extremely complex elastic characteristic, serious chattering of elastic mode occurs in the continuous variable coefficient time domain simulation of its control system. In this paper, the reason of chattering is pointed, and some technologies such as normalization of the elastic mode based on their characteristics, and improvement on the interpolation algorithm...
This research categorized U-turn at Signalized Intersections into mainly four modes, designating them as Mode A,B,C,D: Mode A, at the Downstream Section of the Stop Line; Mode B, at Upstream Section of the Stop Line; Mode C, at the Right Side of the Ingress; Mode D, at the Upstream Section of the Transition Zone. We first evaluate their respective efficiency level, and then set up an efficiency evaluation...
With an increasing emphasis on public transits, the level of service (LOS) provided has gained more attention than ever. In this paper, we aim to evaluate the reliability of the public bus service via the abundant data of GPS and Smart Card. Three indexes (PIL, PIS, and DIS) are taken into consideration; a comprehensive evaluation of Bus No.757 in Shanghai is achieved by the collaboration of these...
Accurate estimation of longitudinal vehicle speed using general in-vehicle sensors like wheel speed sensors and accelerometers is crucial for good performance of vehicle dynamic control systems. Most of passenger vehicles are two-wheel drive, which provides speed measurement by wheel speed sensors of non-driven wheels. However, when wheels are under braking, this method is not reliable enough since...
This paper presents a vehicle routing problem in dynamic urban traffic network with real-time traffic information. Both re-current and non-recurrent congestion are considered in the problem. We develop a method to solve the problem by combining the initial routes arrangement with the real-time route adjustment. The initial route planning is made by solving a time-dependent vehicle routing problem...
Embedded bus monitoring and fault diagnosis system, which was based on protocol SAE J1939 was designed in this paper. And this system took the 32-bit embedded one as a hardware platform, customized a WinCE6.0 operation system and used EVC as the tool to design the embedded application. The functions of CAN communication, protocol defamations etc were realized. Good human-computer interaction is developed...
In this study, we first give a problem formulation for Chinese terms semantic similarity calculation. After that, on closer examination, we find that the traditional approach makes an implicit assumption that the order of corresponding primitive terms for two terms is roughly consistent. In other words, it doesn't consider how the difference in the order affects the quality of correspondence. To overcome...
With the intensification of market competition and fast development of science and technology, many enterprises have begun to realize the importance of logistic distribution vehicle routing problem under uncertainty environment, and begin to pay more attention to the research of this problem. In this paper, The traditional vehicle routing problem with time windows is expanded to the situation that...
According to the policies and laws about occupational safety and health, road transportation enterprises should carry out safety production standardization. Based on modern safety management theory, risk theory and system theory, the safety problems of road transportation enterprises are analyzed through the qualitative and quantitative methods, and characters of passenger stations, road transportation...
A definition of the disorder motion in traffic flow is given in order to quantitatively describe the disorder motion in traffic flow through analysis the concept of order motion and disorder motion. A measure model of disorder motion in traffic flow is put forward based on the traffic entropy. The measure model has been applied to analysis the disorder motion in traffic flow. Aim at the traffic flows...
The dynamics of traffic flow influenced by real-time traffic information has become a hot topic. The aim of this paper is to explore the effects of four different information service strategies on travelers' route choice and the resultant system performance in a signal controlled network, where the exact real-time information is more difficult to collect in comparison with the two-route scenario....
The dual motor powertrain (DMP) configuration is composed of gasoline direct injection (GDI) engine, two motors(one motor connects with input shaft of transmission, namely I-motor, another motor connects with output shaft of transmission, namely II-motor), automatic mechanical transmission (AMT), battery package and hybrid control system. The DMP hybrid system has the functions of engine start/stop...
Target classification is an important enabling technology for the monitoring task in transportation sensing networks. In the paper the magnetic signal and seismic acceleration signal are collected, analyzed and transmitted for a mobile road target. A classification algorithm based on the sensor network is proposed, which adopts a peak and valley pattern of hybrid detection signals from different sensors...
With the intensification of market competition and fast development of science and technology, many enterprises have begun to realize the importance of logistic distribution vehicle routing problem under uncertainty environment, and begin to pay more attention to the research of this problem. In this paper, The traditional vehicle routing problem with time windows is expanded to the situation that...
Aiming to overcome deficiencies of existing DSS for VRP, which cannot meet with real-time and online routing and scheduling, a new knowledge representation approach to efficiently eliciting domain knowledge of the vehicle routing problems (VRP) and transforming this elicited knowledge into a machine usable format is proposed. According to the characteristics of VRP, the approach contains three steps:...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.