نشریه مهندسی ترافیک
پیاپی 78 (پاییز 1398)

traffic tools are the most important factors in reducing traffic crashes, in this research a model is presented for determining the best safety traffic tools which has profound influential on traffic accident. In this research firstly cost of different kind of crash like fetal, injury, and property damage only accident evaluated. For this purpose several factors such as cost of curing injured people or cost which is impacted from dying or disability of people to the society are considered. Beside that for choosing the best safety improvement method for variety rural highway section linear programming implemented in cost-benefit analysis. This method is one of the efficient, one criterion decision method in increasing beneficial in economic project. In this model besides considering cost of accident as fundamental factor of decision, the restriction of budget and problem in different section of the road are considered. One of the most characterizations of this .model is considering more than one safety activity simultaneously km of Urmia-Salmas road, in 91 ,Finally, as a case study and for the sake of research validation .west Azerbaijan province, was modeled

Cordon pricing and odd even policy come from travel demand management (TDM) policies which increase the willingness of people toward public transportation and non-motorized modes with reducing car utility and finally play a major part in decreasing of negative effects of traffic congestion. According to the high importance of choosing the type of TDMs’ policies for big cities in Iran, in this study, is tried to investigate the effects of change of odd even policy (current policy in Isfahan) to cordon pricing policy from the congestion and air pollution point of view. In this regard, the modeling of policies is done with combining the stated preference (SP), which were results of interviews with citizens and revealed percent decrease in air pollution 0.023 ,preference (RP) data. Results for peak hoar show 0.02 percent decrease in congestion costs for cordon pricing policy and 0.017 costs and percent decreases in air pollution and congestion costs, respectively. This 0.0158 percent and .results presents that cordon pricing policy is a more effective policy than odd even policy

Today,population growth on the one hand and the lack of public parking in the central parts of the metropolis on the other hand cause to heavy traffic in metropolitian and .this phenomenon due to serious problem on the residents of these areas and car owners GIS with respect to ability of appropriate assessment criteria that involved in the location of .urban infrastructure can deside on all aspects of issues such as optimal site of public parking In this paper after introduction of problem,efficient criteria in locating public parking were identify. Then effective criteria was classification and by means of questionnaire and expert opinion the weights were measure. Also with use of GIS, maps of each criteria is provided. .of isfahan 1 Then the result in terms of priorities for public parking located in part

Driving styles have been known as an effective factor in discipline and safety development in cities. Recently, identification the details of these factors and trying to improve the transportation system performance in regard to this field have been considered by many researchers in transportation. Current research has been done with the aim of comparative studying of driving culture and behavior of drivers in Iran’s metropolitans. Driving Behavior Questionnaire was used as a self-reporting instrument to examine aberrant behaviors in addition to positive driving 229 behaviors in major cities of Tehran and Mashhad. Respondents of survey samples were ones in Mashhad. Factor analysis of localized DBQ responds in major 90 drivers in Tehran and main factors including: 5 cities classified the structure of drivers’ aberrant driving behaviors to “inattention to driving rules”, “aggressiveness and hurry in driving”, “un-concentration and disobedient to others rights”, “inadvertency in driving” and “speed and rush”. The results of nonparametric tests for independent samples in case of comparing averages of different factors of behavior structure in two cities imply that there is no meaningful difference in driving behaviors between the two cities. On the other side, the results of developed DBQ questions comparison between sample groups indicate that all styles of driving are the same in two groups except two of them: “Using the reverse gear after passing the desired exit on freeways as a driving .”violence” and “letting others to pass in case of your own priority as a positive driving behavior

Car following models are considered as one of the most important driving behavior models, which have widely been applied in various fields of transportation engineering such as microscopic traffic simulation and safety. Large number of factors affect drivers’ car following behavior. In practice, due to the lack of appropriate data and latent nature of some factors, only few numbers of them have been considered in model development. Drivers’ ability to spatial anticipation of traffic flow is one of the important factors of car following behavior, which has been neglected in construction of car following models, particularly in neural network-based car following models. In order to consider this capability, a car following model based on neural network has been developed. Speed of the subject vehicle, speed of first and second leader and speed of follower as well as first and second lead gap and first lag gap were considered as input variables while the model’s output is acceleration of the subject vehicle. Calibration results indicate the better performance of the proposed model in comparison to the base model (without spatial anticipation). Additionally, in some situations both models have similar performance. Further .investigations show that this is due to the large correlation between first and second lead gap

The purpose of the ranking of financing methods of transportation projects, help to improve productivity, maintain and prevent the waste of resources. In this article it has been tried to review the position of finance transport projects in the Municipality of Tehran, commonly used methods of evaluating and ranking it gets. To this end, reviewing the literature, conventional methods of financing in the field of transport were identified. Then, indexes of methods were extracted and by interviews with experts in the fields of urban economy, transport, urban management and financial management, were weighted and initialized. In continuous, using TOPSIS technique, the collected data was analyzed. According to this gotten results refer to index of mechanism of division profit from aspect of finance receiver, ability to run in urban management and index of mechanism of division profit from aspect of finance sender, have the most influence to evaluation of utility methods. In order to finance urban transport projects in .Tehran, a total use of domestic bank loans and Sukuk are the highest priority for deployment

Advanced traveler information systems (ATIS) help the travelers with their travel choices and in analyzing the traffic conditions by one or two-way communication in order to enhance the performance of network. Besides, employing the static traffic assignment models for assessing the impacts of ATIS on the network, which is intrinsically a dynamic problem, will lead to unrealistic results. Here, a multiclass dynamic traffic assignment model and algorithm for estimating the effects of ATIS on the network of city of Tehran are proposed. The travelers in Tehran are classified to two equipped classes. The travelers which are following the UE and the travelers that are following the SO routes, which are 1 routes are considered as class Several scenarios are designed .2 prescribed by the system controllers, are considered as class based on the different percentage of travelers which use the ATIS normative information in Tehran. The numerical results show that the traffic condition in Tehran improves as the percentage of travelers which use the ATIS normative routes increase. Based on the results, which are following the SO routes, will experience longer routes ,2 the travelers of class In addition, a lot of considerable differences between the .1 rather than the travelers of class .static and dynamic results were observed