The use of traffic simulation to analyze safety and performance has become common in transportation engineering. Microsimulation methods are increasingly used driving for different road geometries environmental elements. Drivers’ perception an important impact on factors contributing facilities (highways, arterials, intersections, etc.). Impaired vision leads failure drivers’ making right decisions. Various studies investigated the elements (fog, rain, snow, etc.) performance. However, there...

Industrialization, urban development, and population growth in the last decades caused a significant increase congestion of transportation networks across world. Increasing limitations traditional methods analyzing evaluating mitigation strategies led many professionals to use traffic simulation techniques. Nowadays, is heavily used variety applications, including design facilities, flow management, intelligent systems. The literature review, conducted as part this study, shows that...

Accidents are considered as one of the leading causes death around world. Investigating various accidents, identifying primary factors and accident blackspots can be used to prevent severe injuries associated costs casualties. Many studies conducted world investigate impacts accidents identify main factors. This study investigates severity their at intersections squares. Accident data related Zanjan is assess urban squares intersections, which modeled by SAS software. For this purpose, two...

The critical gap is typically used to determine the capacity at unsignalized intersections. A few studies have been carried out on estimation of U-turn uncontrolled median openings. In this research, was calculated using four well-known methods, Maximum Likelihood Method (MLM), Ashworth's, Raff, and acceptance curve for different types vehicles openings in Iran. data were collected video recording. results showed that MLM best method calculating according conditions According method, average...

By facilitating public busesʼ movement through traffic signal-controlled intersections, a transit signal priority (TSP) strategy can contribute to the reduction of queuing time at intersections. However, traditional TSP also has significant downside; it is detrimental non-prioritized movements and other transport modes. This research proposes new strategies that account for optimization person delay an intersection along corridor. focused both on major arterial roads minor roads, whereas...

Previous research has shown that vehicles making U-turns at a signal-controlled urban road junction can negatively affect the performance of junction. This paper reports on study carried out to determine suitable position allow signalised intersections in Tehran, Iran, based their effects network travel time. A section traffic Tehran was modelled using specialist software. To make results more realistic, local and driver behavioural parameters were calibrated fed into Various scenarios with...

Many signalized intersections are characterized with frequent left-turn moves. Vehicles waiting for a protected left turn may form long queues, which will increase the intersection delay and negatively impact network performance. Researchers practitioners across various countries underline that access management leads to smoother traffic flow. One way of at is eliminate direct maneuver. This study aims evaluate how conditions be affected from replacing right-turn U-turn maneuver...

Most initial implementations of pavement management systems face limited or unavailable local prediction treatment effectiveness. This means decision makers either are forced to borrow benchmark values from elsewhere should wait at least 5 years until time series data collected, enabling them measure effectiveness locally. research proposes an approach help agencies predict the maintenance interventions with while collection is under way and traditional time-series analysis not yet...

Nowadays, the stores always want to find a valid plan for perishable products as challengeable concern management of items. As known, regarding which have limitation consumption, we cannot force consumers buy are close their shelf-life time. To address this challenge, paper considers hybrid FIFO and LIFO strategies its impact on profits vendor managed inventory contracts very little discussion in literature. Most importantly, deals with an system stochastically new optimization model. The...