Vehicle Queue Research Articles

Performance analysis of Unsignal Intersection and Road section with MKJI Method 1997

Intersection Telkom Jatiasih is one of the congestion point in Bekasi City. This is at leave because of the high volume of traffic and also a busy route from Bekasi to Jakarta and the surrounding area, plus the direction to the toll gate Jatiasih. There is no sign – traffic sign making of Intersection Telkom Jatiasih is an unsignable junction, this is what causes the flow of irregular vehicles causing congestion. The data retrieval method is done by surveying directly to the research site. Based on survey result in Telkom Jatiasih intersection, the highest vehicle volume accurred in the afternoon of Monday, April 29 th, 2019. Calculated results based on the field survey result data using the MKJI 1997 book guidelines, obtaining the Degree of Saturation (DS) = 1,86 with the Level Of Service F value, indicating the stopping of the vehicle current at the congestion point such as the meeting path, or repair lanes that cause a long queue of vehicles. On the road Of Wibawa Mukti II Highway – Jatiasihi the vehicle flows are still recorded stably with the Degree of Saturation (DS) = 1,16 with a Level Of Service F value which means the level of road service is still stable. From the research results get an alternative solution Telkom Jatiasih intersection is in alternative 2 because it gets a decrease in the Degree of Saturation (DS) = 1,11 with the value of the Level Of Service F which means high traffic flow condition, but Current conditions are still stable.

BICYCLE LANES DEVELOPMENT PLAN IN MATARAM CITY

Mataram City Government established a bicycle lane at Udayana Street as an alternative for all community to shift their motorized transport by bicycle as a daily transport and to support the NTB Cycling program from NTB Provincial Government. To accommodate changing mode of transportation from motorbikes or cars to bicycles, it is necessary to develop bicycle lanes in Mataram City. Vissim software used to forecast the impact of bicycles lane development at 9 provincial roads as the study area. From the analysis after implementation of bicycles lane development, there is a decrease in level of service based on Volume per Capacity Ratio. In addition, at signal intersection show an increase in queue length and vehicle delays. To minimize the impact of bicycles lane development, mitigation is carried out by rearranging the intersection cycle time. And the result is a reducing of CO, NOx and VOC emissions, fuel consumption, vehicle queue lengths and vehicle delays.

On the Potential Impacts of Smart Traffic Control for Delay, Fuel Energy Consumption, and Emissions: An NSGA-II-Based Optimization Case Study from Dhahran, Saudi Arabia

Intelligent traffic control at urban intersections is vital to ensure efficient and sustainable traffic operations. Urban road intersections are hotspots of congestion and traffic accidents. Poor traffic management at these locations could cause numerous issues, such as longer travel time, low travel speed, long vehicle queues, delays, increased fuel consumption, and environmental emissions, and so forth. Previous studies have shown that the mentioned traffic performance measures or measures of effectiveness (MOEs) could be significantly improved by adopting intelligent traffic control protocols. The majority of studies in this regard have focused on mono or bi-objective optimization with homogenous and lane-based traffic conditions. However, decision-makers often have to deal with multiple conflicting objectives to find an optimal solution under heterogeneous stochastic traffic conditions. Therefore, it is essential to determine the optimum decision plan that offers the least conflict among several objectives. Hence, the current study aimed to develop a multi-objective intelligent traffic control protocol based on the non-dominated sorting genetic algorithm II (NSGA-II) at isolated signalized intersections in the city of Dhahran, Kingdom of Saudi Arabia. The MOEs (optimization objectives) that were considered included average vehicle delay, the total number of vehicle stops, average fuel consumption, and vehicular emissions. NSGA-II simulations were run with different initial populations. The study results showed that the proposed method was effective in optimizing considered performance measures along the optimal Pareto front. MOEs were improved in the range of 16% to 23% compared to existing conditions. To assess the efficacy of the proposed approach, an optimization analysis was performed using a Synchro traffic light simulation and optimization tool. Although the Synchro optimization resulted in a relatively lower signal timing plan than NSGA-II, the proposed algorithm outperformed the Synchro optimization results in terms of percentage reduction in MOE values.

ОБГРУНТУВАННЯ СТРУКТУРИ СИСТЕМИ ПІДТРИМКИ ПРИЙНЯТТЯ РІШЕНЬ НА СПРОЩЕННЯ КОНТРОЛЬНИХ ПРОЦЕДУР У ПУНКТАХ ПРОПУСКУ

The article is devoted to the substantiation of the structure of the decision support system for the simplification of control procedures at road checkpoints across the state border. As a result of the research, the structure of the decision support system for simplification of control procedures at road checkpoints is proposed. The structure is based on the analysis of the border control process at road checkpoints and technological features of its simplification, analysis of decision support models for the organization and technology of border control simplification, as well as analysis of problematic aspects of their implementation and identification of possible solutions. The article substantiates that the basis of the database management system models of the studied decision support system should be a model for determining the need for simplification of border control at road checkpoints, a model for determining the duration of simplification of border control and a model for selecting appropriate control actions for individuals and vehicles. queues. The basis of the database management system of the studied decision support system should be databases relating to the situation at the checkpoint, which changes dynamically over time, the characteristics of the queue of vehicles, tactical and technical characteristics of those vehicles from which the queue may be formed. car checkpoint, departmental database "Gart - 1 P", a database concerning the rules of crossing the state border, a database of information signs of offenses at the state border and risk profiles.

TRAVEL DELAY OF VEHICLES QUEUE AT A TRAFFIC SIGNAL

Mathematical modeling assumes that the vehicle’s volume has a uniform pattern. Due to traffic lightssettings, the number of vehicles queue grows linearly. The reality, the stochastic arrivals of the vehiclescould be (1) in the randomized arrivals, (2) in the form of groups/ platoon, or (3) in the mixed arrivals. Itis observed that the arrival of the vehicles in the queue tends to have a normal pattern. The objective ofthis research is to study the implications of the arrival categories to the travel delay. For simulation, ituses the numerical method referring to the real state. The result indicates that the calculations of thetravel delay become precise for all vehicles.

Lane-Based Traffic Signal Simulation and Optimization for Preventing Overflow

In the lane-based signal optimization model, permitted turn directions in the form of lane markings that guide road users to turn at an intersection are optimized with traffic signal settings. The spatial queue requirements of approach lanes should be considered to avoid the overdesigning of the cycle, effective red, and effective green durations. The point-queue system employed in the conventional modeling approach is unrealistic in many practical situations. Overflow conditions cannot be modeled accurately, while vehicle queues are accumulated that block back upstream intersections. In a previous study, a method was developed to manually refine the traffic signal settings by using the results of lane-based optimization. However, the method was inefficient. In the present study, new design constraint sets are proposed to control the effective red and effective green durations, such that traffic enters the road lanes without overflow. The reduced cycle times discharge the accumulated vehicles more frequently. Moreover, queue spillback and residual queues can be avoided. One of the most complicated four-arm intersections in Hong Kong is considered as a case study for demonstration. The existing traffic signal settings are ineffective for controlling the observed traffic demand, and overflow occurs in short lanes. The optimized traffic signal settings applied to the proposed optimization algorithm effectively avoided traffic overflow. The resultant queuing dynamics are simulated using TRANSYT 15 Cell Transmission Model (CTM) to verify the proposed model. The model application is extended to handle the difficult residual queue scenario. It is found that the proposed model can optimize the traffic signal settings in cases where there are short initial residual queues.

Simulation of Traffic T-Junction at Cibiru-Cileunyi Lane Using SimEvents MATLAB

The Cibiru-Cileunyi line (JCC) or also called as Cinunuk road located in Bandung Regency, West Java, Indonesia, is one of the most densely lane vehicles because it is the only non-toll road that connects various cities in the western and northern regions to cities in the southern and eastern regions of Java West. In addition, the activities of the city and regency of Bandung and also the local community have added to the traffic jam at JCC. JCC traffic has been complained about by many people who pass to go to school, work or other activities. Congestion occurs every day, especially at rush hour, i.e. in the morning at 6 AM to 8 AM and the afternoon at 4:00 PM to 7:00 PM. However, outside of these hours, high traffic jams are also always occur. JCC travel time can reach more than 1 hour in congested conditions, while at normal situation the travel time to cross at JCC is an average of 10 minutes. One of the causes of congestion is the high traffic in and out of vehicles at several T-junction locations at JCC, where almost every T-junction at JCC raises a very long vehicle queue. In this article a simulation is proposed to represent the JCC traffic situation. The simulation is created using the SimEvents MATLAB. In this simulation, some traffic engineering is applied, such as by manage the crossings in and out of vehicles at several T-intersections in the JCC to reduce congestion.

High-resolution simulation-based analysis of leading vehicle acceleration profiles at signalized intersections for emission modeling

The acceleration profile of leading vehicles at intersections is critical for emission estimation and microlevel queue simulation. Data obtained from experiments using a high-resolution driving simulator can deliver useful insights into microscale acceleration behaviors at signalized intersections. Acceleration data of the leading vehicles in queues are collected by the simulator. The observed accelerations are found to be stochastic. The acceleration characteristics are also significantly diversified among participants. Hence, a Markov chain is implemented to simulate the acceleration behaviors. The acceleration data are classified into varied operation states. And the Markov chain reconstructs the acceleration profiles of leading vehicles and reproduces the randomness of acceleration behaviors. Among numerous candidate profiles, a speed profile is selected by a proposed criterion that represents the typical acceleration behaviors at signalized intersections.

Evaluation and Improvement of E-toll Card System at Suramadu Toll Gate

The research was conducted to the manager or operator of toll road and e-toll users to find out what problems happened in transactions with e-toll cards. The purpose of the E-Toll Card is to simplify transactions and to unravel the traffic jam at the Suramadu toll gate. The methods used were the critical incident technique (CIT) and importance performance analysis (IPA). The research result in Suramadu toll road is 7 attributes that need to be improved. Evaluation and improvement of toll road usage system resulted that queue of vehicles at Suramadu toll gate was caused by the lack of socialization, lack of signs along Suramadu road access and lack of toll gate on Suramadu toll road. The toll road management is also required to provide a place for top up e-toll cards around Suramadu access. The toll road management also opens the e-toll card complaint system to the complaints of e-toll card users with the online system and also to reduce transaction errors on toll roads.

Model Microsimulation Roundabout Utilities in Makassar

The vehicle growth is one of the problems affecting traffic congestion. The circulation of entry vehicles and circulating vehicles in confluence made the conflict point. Avoidance the conflict is the need to increase road performance. The roundabout of the road is one of the utilities to increase the performances of traffic and reduce congestion. The prevention step is to maximize the utilities to control and manage the traffic. The roundabout dispersed and controlled the traffic flow. According to Makassar roundabout observation, the queuing and delay of vehicles recently occurs. This study aims to an analysis of the roundabout using the microsimulation Vissim program. The model uses the geometric condition of the road and volume of the vehicle that produce the models based on real condition and validation. This model performed the visual condition and calculated the capacity and shows the emission of the operational vehicle, and the general performances are summarized for operation performances at roundabout confluence sections. The result indicated that the roundabout is still useful to reduce the potential of queuing and delay the time of vehicles, and it needs supervision periodically for preventing the traffic from the potential congestion, especially in developing countries. The research result is useful as a reference for improving the capacity of roundabouts.

Re-emerging Issue of Bali Strait Connecting Bridge

After received harsh critiques in 2016, once more, a rumor about the construction of a bridge between Java island and Bali island has been sparking wildly since January 2020. Previously, Banyuwangi Regent Azwar anaz proposed a plan to build a connecting bridge to reduce vehicle queues in ketapang harbor. Commonly, the traffic would reach its peak time on holiday season after Eid al-Fitr, where congestion in Ketapang harbor got its limit capacity. For decades, the Bali strait has been serving as a connecting port between Java and Bali, which is essential for economic growth and public migration. Meanwhile, philosophically, the strait holds a symbol of new hope and new life that separates between past and future. A rumor to build an overpass between java island and Bali island discussed in early 2020 and in 2016 to reduce vehicle queues in ketapang harbor received critiques from Balinese society. To connect the two islands by land route would be considered a poor decision since it would affect some values and cultures that the community, especially Bali, holds dearly. Thus as an alternative solution, the idea of making another dock, an executive dock, both in Ketapang and Gilimanuk, is much preferred. The presence of the executive port will automatically eradicate the resurgent discourse on the Java-Bali bridge construction. Because crossing via ship alone takes 15 minutes, thus the Java-Bali bridge seems unnecessary. The executive pier would be in synergy with the construction of the Denpasar - Gilimanuk toll road.

Alternatives to Improve Operational Traffic in Roundabouts Using Microsimulation

Roundabout in urban arterials are likely to block roads or generate long queues of vehicles due to the constant changes on urban dynamics near to the interception. Several alternatives to modify the flow pattern or geometry and infrastructure need to be study previously to propose a final design solution of roundabout with traffic issues. In this study, a review of three alternatives to improve the operational traffic are discussed; signalized intersection, turbo-roundabouts and overpass/underpass. In addition, the application of these alternatives is evaluated in a “classic” roundabout located at Tunja city that has a maximum of 3691 Veh/h counted and it is operated in saturated condition. Microsimulation is used from a calibrated model with volume counted, vehicle composition and speeds in the VISSIM software. Results show that signalize the roundabout does not improve the operational traffic (with a reduction on 38% of approach speed) and, the turbo-roundabouts are a mid-term solution that meet the traffic demand on 15 years with a progressively loss of service (with a mean approach speed of 6.4 Km/h at 15 years). The constructions of underpass and overpass show to be the only solution that increase four times the travel speed throw the roundabout and keep acceptable speed at the end of cyclic live of intersection (18.7 Km/h at 20 years).

Parallel Queues with Discrete-Choice Arrival Pattern: Empirical Evidence and Asymptotic Characterization

We consider a parallel-queue system in which each queue is served by a dedicated service provider. The arrival process is driven by a discrete choice model, that is, customers observe the queue length for each service provider and choose one to join upon arrival. We assume that a customer's utility is difference between the service reward and the waiting cost, both of which are heterogeneous. Empirical analysis of the vehicle queues at the U.S.-Canada border-crossing port of entry supports our model setting. We show that with such a choice model, the arrival rate function satisfies certain properties, which allow us to characterizes the fluid and diffusion limit of the queue-length process. In particular, we show that even without the well-used Lipschitz-continuity assumption, the fluid limit process is unique and is attracted to a unique equilibrium. The diffusion limit process is a reflected multi-dimensional Ornstein-Uhlenbeck process centered at that equilibrium. We prove that the stationary distribution of the diffusion limit is a truncated multivariant Gaussian and interchange of limits holds.

Applying improved K-means algorithm into official service vehicle networking environment and research

In order to improve the traffic efficiency of official vehicles in the traffic road network, a backpressure routing control strategy for multi-commodity flow (official traffic flow) using official vehicle network environmental data information is proposed. Firstly, the road network composed of official service vehicle-mounted wireless network nodes is used to collect information on road conditions and official service vehicles. In order to improve the real-time and forward-looking route control, an official service vehicle flow forecasting method is introduced to construct a virtual official service vehicle queue. A multi-commodity flow (official service vehicle flow) backpressure route method is proposed, and an official service vehicle control strategy is designed to improve the self-adaptive route of K-means algorithm. In addition, the weight of backpressure strategy is improved according to traffic pressure conditions, and the adaptability of backpressure route algorithm is improved by using optimized parameters. Finally, the simulation results show that the proposed method can effectively control traffic vehicles and improve traffic smoothness.

Analysis of queue and performance of automatic toll booths with a normal distribution (case study: automatic booths toll gate muktiharjo)

Queue process is a process related to the arrival of customers in a service facility, waiting in line queue if it cannot be served, get service and finally leaves the facility after being served. Research on the queue process can be seen directly through the queue system. Queue models and their distribution were obtained using the Sigma Magic program. The model of the vehicle queue system at the Muktiharjo Automatic Toll Gate is (NORM/NORM/4):(GD/∞/∞). Based on the values of the queue system performance measures obtained through the MATLAB GUI program as a whole it can be concluded that the queue of vehicles at the Muktiharjo Automatic Toll Gate has a condition where the average number of vehicles estimated in the system every 30 minutes is 99,2564 vehicles. The average number of vehicles in the queue system every 30 minutes is 98,2557 vehicles. The waiting time in the system is estimated to be around 15,51732 seconds. The estimated waiting time in line is around 15,36084 seconds. The queue system has a busy opportunity for 63.2849%. The simulation of the vehicle queue system at the Automatic Toll Gate of Muktiharjo Toll Gate by using ARENA is optimal with 4 automatic toll booths.

Analysis of Three Synthese Signals and Roads at Jl. Raya Karang Satria - Bekasi District

Bekasi Regency is a Regency in West Java Province with a population of ± 3,500,023 Million People (Statistics Indonesia, 2017). Jl. Raya Karang Satria - Bekasi Regency is access to the main road to the city border, besides that access to residential locations, schools, which makes vehicle traffic especially during rush hour more congested by the activities on the side of the road such as the ups and downs of passengers from public transportation, as well as vehicles that stop causing long vehicle queues and can reduce travel time. To get primary data that is by surveying traffic volumes, geometric conditions, and environmental conditions. While secondary data obtained by searching using internet media. The analysis data used is guided by the Indonesian Road Capacity Manual Method (MKJI 1997). With this method, the capacity, degree of saturation, delay, and service level at the intersection can be known. From the results of the study obtained the largest degree of saturation (DS) value of 0.95 pcu / hour means that the value exceeds that required by MKJI (1997) which is <0.75 from the result of the average intersection delay (D intersection) of the largest 17 sec / pcu. This shows that the level of intersection C service is unstable flow because it has limited speed and movement and therefore it is necessary to review the level of intersection service. And researchers provide an alternative to improve the performance of these unsignalized intersections by changing FRSU from 0.98 to 1 and prohibiting right-turn traffic from both Major D to Minor C and from Minor C to Major B and removing side obstacles. For the road section, the highest degree of saturation (DS) value is obtained 0.74. This shows that the level of segment service is not stable. So an alternative is done to improve the level of segment performance by removing the original side obstacle factor of 0.86 to 1 on each arm.

Research on Ecological Driving Strategy of Urban Road Vehicles under Vehicle-road Collaborative Environment

With the increase of motor vehicles, the energy resources available for vehicles have become scarce. In view of the harmfulness of traffic emissions, energy conservation and emission reduction have become strategic goals for the development of the transportation industry. Guiding students to realize ecological driving and reducing vehicle fuel energy consumption and emissions have increasingly attracted the attention of researchers. We are supposed to do a research on signalized intersections at important nodes of urban transportation, use ecological driving to simulate the operation of bicycles and vehicle queues, establish an ecological driving model, and control energy conservation and emission reduction goals from multiple perspectives. This paper combines the ecological driving technology and micro fuel consumption calculation model under the vehicle-road collaborative environment to study the fleets within the signalized intersection. At the same time this paper proposes street signs, models, and case applications that can effectively reduce the average fuel consumption and parking times of the vehicles passing the signalized intersection to ensure the smoothness of operation at signalized intersections has been reduced, and rapid acceleration and deceleration operations have been performed. After verification, the establishment of the fleet’s eco-driving model has great effectiveness.

Real time monitoring and evaluation of overturning risk of single-column-pier box-girder bridges based on identification of spatial distribution of moving loads

The evaluation of the overturning risk of the main girder of single-column-pier box-girder bridges has always been one of the focuses of safety monitoring during the service period of this kind of bridge. The bridge health monitoring technology can provide important data support and offer effective analytical tools for solving this problem. By monitoring the displacement and inclination of the bearing section, although the real time assessment of the overturning risk of the main girder can be achieved, it falls short in their ability to predict the overturning risk in advance. Therefore, a real time monitoring method for the overturning risk of box-girder bridges with predictive ability is proposed in this paper. This method combines machine vision and weigh-in-motion monitoring information to identify the real time distribution of the actual vehicle queue within the specified area of the bridge deck. Furthermore, the analytical expression of the support reaction of the main girder is derived to realize the real time calculation of the support reaction. Based on this, a method is developed to evaluate the overturning risk of the bridge within the monitored region in real time, and by using the measured vehicle trajectories, to predict the overturning risk of the adjacent bridges in front. The effectiveness of the proposed method is verified through both the field data and finite element model of a straight single-column-pier bridge.

DESIGN OF TRAFFIC SIGNAL CONTROL SYSTEMS BASED ON FUZZY CONTROL

With a gradual increase in urban road traffic volume and traffic congestion degree, how to improve and solve the current traffic pressures has been a problem requiring urgent solution. To improve the traffic congestion status in urban road intersections and heighten the road traffic efficiency, the principle of fuzzy control is employed in this paper. Moreover, the multi-phase signal traffic control of intersections is performed together with vehicle queue lengths in lanes corresponding to the key traffic flow, and a traffic signal fuzzy control system is designed. Finally, this paper compares the simulation results between the fuzzy control system designed herein and the existing fixed traffic signal control methods. The comparative test results have shown that the fuzzy control method can well better actual congestion and traffic efficiency at intersections to a greater degree than the fixed timing method does.

The Effect of Toll Gate Type on the Queue of Vehicles in Connecting Roads: A case study of Bawen – Yogyakarta Toll Road

Due to the increased population, accessibility from one place to another, and effort to support economic growth, the Indonesian Central Government plans to build 71 kilometers of Yogyakarta-Bawen Toll Road. It is, however, important to state that the technical requirements of a connecting road are an integral part of the toll road construction. Therefore, this research was conducted to determine the sufficient length for the connecting road between the toll gate and existing one to reduce the investment of Toll Road Business Entity and ensure a more extended return period of concession. The data used include the vehicle speed and daily traffic on the road while the maximum length value of vehicle queue occurring in the peak hour period and interval for each type of toll gate was calculated in the modeling simulation. The results showed the satellite gate with 4 lines has 159 meters, tandem with 2 lines has 434 meters, and extending with 3 lines has 513 meters. Since all the gates have less than 2 kilometers of queue length, the stretch of the connecting road in each toll of the plan needs to be analyzed to ensure effective development