Traffic Reorganisation in Large Roundabouts of Vilnius and its Influence on Traffic Safety

Stanevičiūtė, Iveta; Dumbliauskas, Vytautas

doi:10.7250/bjrbe.2020-15.483

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…Table 6 and Figures 10,11 show the traffic efficiency of the proposed RA-DCCS and two benchmarks in the third type of experimental scenarios. We can observe that asymmetric traffic flow input will affect the optimization effect of the proposed strategy under the condition of similar traffic density of symmetric traffic flow input, but it is still considerable to improve the efficiency of the roundabout.…”

Section: Benchmark Comparisonsmentioning

confidence: 99%

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A distributed trajectory control strategy for the connected automated vehicle in an isolated roundabout

Jia

Yang

et al. 2021

IET Intelligent Trans Sys

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This paper develops a distributed cooperative control strategy (DCCS) to plan and optimize the collision-free trajectory for the connected automated vehicle (CAV) at an isolated roundabout. The representation of the trajectories of CAVs is defined within a roundabout. The central angle and lane radius are used to indicate the location of vehicles, and the corresponding angular velocity is used to describe the vehicle's speed through the roundabout. This trajectory definition method simplifies the proposed problem into two parts: the trajectory optimization of each vehicle in a specific lane and the lane change coordination of CAVs in the roundabout. To solve the trajectory optimization problem, a mixed-integer linear programming (MILP) model is formulated at the vehicle level to minimize the travel time and make the trajectory as smooth as possible. A model predictive control (MPC) framework is designed to coordinate lane-change conflicts and push CAVs' trajectories toward global optimization. The proposed framework integrates the vehicles' trajectory optimization results so that all CAVs reach a consensus. Numerical experiments test the effect of the strategy in terms of traffic efficiency and mobility performance under different demand pattern scenarios. The results show that the proposed RA-DCCS (Roundabout-DCCS) can make all CAVs smooth and conflict-free trajectories and enable vehicles to execute reasonable lane change decisions.

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Section: Benchmark Comparisonsmentioning

confidence: 99%

“…However, decelerate speed, merging, and lane change at roundabouts are the leading causes of bottlenecks that produce congestion. Significantly, the efficiency of the roundabout will diminish with the increase of the traffic volume, which means that the fuel consumption and travel time of vehicles increase [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

A distributed trajectory control strategy for the connected automated vehicle in an isolated roundabout

Jia

Yang

et al. 2021

IET Intelligent Trans Sys

View full text Add to dashboard Cite

show abstract

“…As for what supports the economy in Jambi City, there are several shopping centers which in their category are large shopping centers, one of which is the Jambi Town Square Mall (Dahmiri et al, 2015;Putri & Triana, 2022). Where urban areas are often considered a source of additional traffic volume (Ben-Edigbe & Ramli, 2012;Grigonis et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Impact of Attraction and Generation on the Performance of Jalankapten A. Bakarudin, Jambi City

Nurdin

Fitri

Nuklirullah

2022

jpensil

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One of the supports for the economy in Jambi province is the Shopping Center Development of shopping centers. Jambi Town Square Mall is one of the shopping centers in the City of Jambid with the Jambi Town Square Mall resulting in an additional volume of traffic on Jalan Kapten A. Bakarrudin No 88 Sipin Jambi City which causes a decrease in the performance of Jalan Kapten A. Bakarrudin No 88 Sipin. From the results of a field survey carried out for four days, the peak of the vehicle attraction at Jambi Town Square Mall on Monday 12 August 2020 at 19.00 WIB - 20.00 WIB was 415 vehicles / hour, Saturday 15 August 2020 at 19.00 WIB - 20.00 WIB as many as 421 vehicles / hour, Sunday, August 16 2020 at 19.00 WIB - 20.00 WIB, 596 vehicles / hour, Tuesday 375 vehicles / hour. The peak of the Jambi Town Square Mall Vehicle awakening is on Wednesday 12 August 2020 at 20.00 WIB - 21.00 WIB with a total of 411 vehicles / hour. Saturday 15 August 2020 at 20.00 WIB - 21.00 WIB with a total of 475 vehicles / hour, Sunday 16 August 2020 at 17.00 WIB - 18.00 WIB with a total of 521 vehicles / hour, Tuesday, August 18 2020 at 20.00 WIB - 21.00 WIB with a total of 469 vehicles / hour, the highest DS value is 1.028 at 17.00 WIB - 18.00 WIB

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“…As it can be seen from the current literature, signalized intersection capacity analysis procedures and methodologies are being continually reviewed and updated by many researchers from all around the world with the ultimate aim to prevent long vehicle queues and delays. In all studies, the general aim is to maximize the potential capacity of examined intersections to increase traffic-carrying capacity of intersections (Li, 2011;Ma et al, 2017;Grigonis et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Modeling of Effective Parameters for Capacity Prediction at Signalized Intersection Lanes

Aydın

2022

BJRBE

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Current capacity manuals do not allow comprehensively evaluating negative effects on lane capacity caused by undisciplined vehicle movements and lane utilization, such as failure to obey distance rules, lane blockage caused by roadside parking effect, formation of an extra lane using in the emergency lane, etc., which are mostly observed in undeveloped and developing countries. Irregularities of the traffic flow caused by undisciplined movements and lane utilization result in decreased capacity or traffic change on the urban lanes. To overcome this problem, a lane-based study was carried out to determine the relation among effective parameters and their effect on lane capacity. In order to model the impact of these parameters, a comprehensive study was conducted in two cities in Turkey. Two different methods (statistical analysis and metaheuristic search algorithm) were used for this purpose and new more reasonable lane capacity estimation models (ALLCEM-1 and ALLCEM-2) were developed by examining all local conditions. The results proved that both examined methods are effective in modelling lane capacity of signalized intersections. It was also found that such parameters as the type of intersection (either a roundabout or not), effective green time, saturation flow rate, traffic volume, heavy vehicle ratio, and the number of actively used lanes have a major impact on the accuracy of prediction of road capacity.

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Traffic Reorganisation in Large Roundabouts of Vilnius and its Influence on Traffic Safety

Cited by 5 publications

References 10 publications

A distributed trajectory control strategy for the connected automated vehicle in an isolated roundabout

A distributed trajectory control strategy for the connected automated vehicle in an isolated roundabout

Analysis of the Impact of Attraction and Generation on the Performance of Jalankapten A. Bakarudin, Jambi City

Modeling of Effective Parameters for Capacity Prediction at Signalized Intersection Lanes

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