scholarly journals Traffic Management Solutions at Roadwork Zones During Planned Special Events

2021 ◽  
Vol 16 (2) ◽  
pp. 30-47
Author(s):  
Dovydas Skrodenis ◽  
Donatas Čygas ◽  
Algis Pakalnis ◽  
Andrius Kairys
Keyword(s):  
Traffic Flow ◽  
Traffic Management ◽  
Management Systems ◽  
Traffic Flows ◽  
Flow Capacity ◽  
Special Events ◽  
Traffic Capacity ◽  
Management Scheme ◽  
Congestion Problems ◽  
Planned Special Events

Planned special events (PSEs) attract more people than usual to specific areas, which leads to increased traffic flows and congestions on the roads. Roadwork zones are among the most vulnerable areas on the roads, where increased traffic can lead to congestion. In roadwork zones, the vehicle flow capacity is already lower than in the conventional situations without roadworks, but at the time of PSEs, these zones become difficult to pass if no attention is paid to the change of the traffic management scheme. This kind of events poses many threats for road authorities, thus, new traffic management systems should be considered. This paper analyzes 2 PSEs and one national celebration in Lithuania and a significant impact they have on the regular traffic flow. PSEs are taken into consideration as they attract traffic to a known place; however, national celebrations distort traffic along all roads and it is not known exactly, which roads will be congested the most. Since roadwork zones cause congestion problems even in conventional situations, this paper presents traffic capacity calculations at these road stretches during PSEs and considers how they change depending on the traffic management scheme.

Scalable Intra and Inter Domain IPv6 QoS Management and Pricing Scheme

2010 ◽  
pp. 256-279
Author(s):  
El-Bahlul Fgee ◽  
Shyamala Sivakumar ◽  
William J. Phillips ◽  
William Robertson
Keyword(s):  
Traffic Flow ◽  
Dynamic Pricing ◽  
Pricing Strategy ◽  
Traffic Flows ◽  
Lower Priority ◽  
Qos Management ◽  
Management Scheme ◽  
Pricing Scheme ◽  
End To End ◽  
Pricing Schemes

Network multimedia applications constitute a large part of Internet traffic and guaranteed delivery of such traffic is a challenge because of their sensitivity to delay, packet loss and higher bandwidth requirement. The need for guaranteed traffic delivery is exacerbated by the increasing delay experienced by traffic propagating through more than one QoS domain. Hence, there is a need for a flexible and a scalable QoS manager that handles and manages the needs of traffic flows throughout multiple IPv6 domains. The IPv6 QoS manager, presented in this paper, uses a combination of the packets’ flow ID and the source address (Domain Global Identifier (DGI)), to process and reserve resources inside an IPv6 domain. To ensure inter-domain QoS management, the QoS domain manager should also communicate with other QoS domains’ managers to ensure that traffic flows are guaranteed delivery. In this scheme, the IPv6 QoS manager handles QoS requests by either processing them locally if the intended destination is located locally or forwards the request to the neighboring domain’s QoS manager. End-to-end QoS is achieved with an integrated admission and management unit. The feasibility of the proposed QoS management scheme is illustrated for both intra- and inter-domain QoS management. The scalability of the QoS management scheme for inter-domain scenarios is illustrated with simulations for traffic flows propagating through two and three domains. Excellent average end-to-end delay results have been achieved when traffic flow propagates through more than one domain. Simulations show that packets belonging to non-conformant flows experience increased delay, and such packets are degraded to lower priority if they exceed their negotiated traffic flow rates. Many pricing schemes have been proposed for QoS-enabled networks. However, integrated pricing and admission control has not been studied in detail. A dynamic pricing model is integrated with the IPv6 QoS manager to study the effects of increasing traffic flows rates on the increased cost of delivering high priority traffic flows. The pricing agent assigns prices dynamically for each traffic flow accepted by the domain manager. Combining the pricing strategy with the QoS manager allows only higher priority traffic packets that are willing to pay more to be processed during congestion. This approach is flexible and scalable as end-to-end pricing is decoupled from packet forwarding and resource reservation decisions. Simulations show that additional revenue is generated as prices change dynamically according to the network congestion status.

Impact Analysis of Extra Traffic Induced by Project Construction during Planned Special Events

2019 ◽  
Vol 2673 (7) ◽  
pp. 402-412
Author(s):  
Zhongyu Wang ◽  
Yufang Bai ◽  
Rui Zhu ◽  
Yanli Wang ◽  
Bing Wu ◽  
...  
Keyword(s):  
Traffic Flow ◽  
Impact Analysis ◽  
Negative Impact ◽  
Traditional Approach ◽  
Management Strategies ◽  
Special Events ◽  
Traffic Impact ◽  
Project Construction ◽  
Planned Special Events

The questions of how serious the extra traffic impact induced by project construction is on urban road networks and whether the construction should continue during planned special events represent a critical problem. In this paper, a framework of methodologies and workflow is presented in analyzing the project construction induced traffic impact during special events. We first analyze the characteristics of the traffic flow attracted by special events and project construction induced traffic flow. We then show how to evaluate the project construction induced traffic impact during special events and propose some quantitative analysis methods, which are different in nature from the traditional approach of traffic impact analysis. Some management and improvement strategies are subsequently proposed to mitigate the negative impact of project construction. A case study of a vertical construction during Expo 2010 in Shanghai is discussed as an application of the proposed framework. The results show that the traffic impact of this vertical construction during Expo is moderate. Through our subsequent monitoring of this vertical construction practice during Expo 2010, it can be concluded that the analysis method is reliable, the negative traffic impact of vertical construction to Expo is insignificant, and the suggested operation and management strategies are effective.

scholarly journals P PEMODELAN ARUS LALU LINTAS DAN WAKTU TUNGGU TOTAL OPTIMAL DI PERSIMPANGAN JL. JEMUR ANDAYANI – AHMAD YANI SEBAGAI UPAYA MENGURAI KEMACETAN

2020 ◽  
Vol 14 (3) ◽  
pp. 389-398
Author(s):  
Yuniar Farida ◽  
Aris Fanani ◽  
Ida Purwanti ◽  
Luluk Wulandari ◽  
Nanida Jenahara Zaen
Keyword(s):  
Traffic Flow ◽  
Waiting Time ◽  
Traffic Management ◽  
Traffic Flows ◽  
Left Turn ◽  
Traffic Performance ◽  
Time Calculation ◽  
High Level ◽  
Signal Time

One crossroad of ​​Surabaya whose high level of congestion is the crossing of Jemur Andayani – Ahmad Yani Street. It needs to Improve traffic management, geometric, and signal time to obtain optimal traffic performance. The purpose of this study is to make a model of traffic flow and determine the optimal total waiting time at the crossing of Jemur Andayani – Ahmad Yani using Compatible Graph. Compatible graphs are two sets where vertices indicate objects to be arranged and edges indicate compatible pairs of objects. Compatible traffic flow is two traffic flows which if both of them run simultaneously can run safely and not collide. The results of the optimal waiting time calculation using a compatible graph assuming the left turn following the lamp is 75 seconds. While the optimal total waiting time by assuming the left turn not following the lights is 60 seconds. The optimal total waiting time is smaller than the actual total waiting time currently applied at Frontage Ahmad Yani street, which is 170 seconds by assuming turn left following the lights.

scholarly journals ANALISA TINGKAT PELAYANAN SIMPANG TAK BERSINYAL TIPE T DENGAN METODE HCM 2000 ( Studi Kasus jalan Merdeka Barat Kota Lhokseumawe )

2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Hanafiah Hanafiah
Keyword(s):  
Traffic Flow ◽  
Traffic Management ◽  
City Government ◽  
Degree Of Saturation ◽  
Geometric Condition ◽  
Analysis Method ◽  
Flow Capacity ◽  
Alternative Approach ◽  
Surrounding Areas ◽  
Road Widening

Lhokseumawe city is the capital of Lhokseumawe City Government as well as the center of trade activities, education and social and culture which every day passed throught by the traffic flow from the surrounding areas. As a result of several potential intersections would be conflict and prone jammed. One of the conflict-prone locations is at the intersection of Jalan Merdeka Barat -Jaya Sakti. This conflict cousted by no traffic signs provided there geometric condition of intersection is not standard, so that during the rush hours tends to be congestion. In connection to these problems, this study tried to analyze performance of the intersection as traffic management solutions to overcome bottlenecks in the area of Jalan Merdeka Barat intersection. Survey data acquisition in the third crossing arm were done by recording the movement of traffic with a handy cam records for 3 days, during rush hours in the morning, afternoon and evening. The results of the analysis method on the condition of existing HCM 2000, the amount of delay on the Eastern arm 19.75 ses/smp, located at the level of service C, the delay arm west and south 30.76 sec/smp, located at the level peleyanan D. Alternative approach road widening the Jalan Jaya Jaya Sakti to 7 meters and Jalan Merdeka Barat to 14 meters, 4-lane 2-way use can reduce the median performace of intersection.Keywords: intersection fermormance, traffic flow, capacity, degree of saturation

scholarly journals SELECTED ISSUES IN MODELLING OF TRAFFIC FLOWS IN CONGESTED URBAN

2014 ◽  
Vol 29 (1) ◽  
pp. 77-89 ◽  
Author(s):  
Renata Żochowska
Keyword(s):  
Traffic Flow ◽  
Traffic Management ◽  
Transportation Network ◽  
Traffic Flows ◽  
Traffic Shaping ◽  
Dynamic Traffic ◽  
Urban Network ◽  
Traffic Models ◽  
The Subject ◽  
The City

Making rational decisions about the planning and designing the traffic management in the city requires a proper description of traffic flows following through the various elements of the transportation network. This issue is the subject of many studies, resulting in a wide variety of models used in this field. Generally they can be divided into two main groups: models describing the distribution of traffic flows in the transportation network and models describing the transition of traffic flow by individual elements of the transportation network. This article reviews the models used to describe the traffic shaping in such an arrangement. Then the way of describing traffic flows, which may be used in the construction and calibration of dynamic traffic models has been formalized. The article also includes a calculation example with application of the proposed description of the components of traffic flows on the link of urban network.

Enhancing intelligence in traffic management systems to aid in vehicle traffic congestion problems in smart cities

2020 ◽  
Vol 107 ◽  
pp. 102265
Author(s):  
Geraldo P. Rocha Filho ◽  
Rodolfo I. Meneguette ◽  
José R. Torres Neto ◽  
Alan Valejo ◽  
Li Weigang ◽  
...  
Keyword(s):  
Traffic Congestion ◽  
Traffic Management ◽  
Smart Cities ◽  
Management Systems ◽  
Vehicle Traffic ◽  
Congestion Problems

Verifiable and Privacy-Preserving Traffic Flow Statistics for Advanced Traffic Management Systems

2020 ◽  
Vol 69 (9) ◽  
pp. 10336-10347
Author(s):  
Chuan Zhang ◽  
Liehuang Zhu ◽  
Jianbing Ni ◽  
Cheng Huang ◽  
Xuemin Shen
Keyword(s):  
Traffic Flow ◽  
Traffic Management ◽  
Privacy Preserving ◽  
Management Systems

New Procedure for Detector Data Screening in Traffic Management Systems

2000 ◽  
Vol 1727 (1) ◽  
pp. 127-131 ◽  
Author(s):  
Rod E. Turochy ◽  
Brian L. Smith
Keyword(s):  
Traffic Flow ◽  
Traffic Management ◽  
Critical Role ◽  
Flow Theory ◽  
Threshold Value ◽  
Management Systems ◽  
Traffic Flow Theory ◽  
Traffic Conditions ◽  
Wide Range ◽  
Data Screening

Automated monitoring of traffic conditions in traffic management systems is of increasing importance as the sizes and complexities of these systems expand. Accurate monitoring of traffic conditions is dependent on accurate input data, yet techniques that can be used to screen data and remove erroneous records are not used in many traffic management systems. Procedures that can be used to perform quality checks on the data before their use in traffic management applications play a critical role in ensuring the proper functioning of condition-monitoring methods such as incident detection algorithms. Tests that screen traffic data can be divided into two categories: threshold value tests and tests that apply basic traffic flow theory principles. Tests that use traffic flow theory use the inherent relationships among speed, volume, and occupancy to assess data validity. In particular, a test that derives the average effective vehicle length from the observed traffic variables detects a wide range of erroneous data. A new data-screening procedure combines both threshold value tests and traffic flow theory–based tests and can serve as a valuable tool in traffic management applications.

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