A Simulation Study of the Operational Performance of Left-Turn Phasing and Indication Sequences

Asante, Seth A.; Ardekani, Siamak A.; Williams, James C.
May 1996
Transportation Science;May96, Vol. 30 Issue 2, p112
Academic Journal
In this paper, the operational performance of left-turn phasing and indication sequence is presented. The study contributes to the selection of an optimal left-turn phasing and indication sequence. Presently, there are no comprehensive guidelines to assist traffic engineers in this task. The operational performance of six different phase patterns and three intersection geometric are addressed using simulations. The threshold values to identify traffic conditions under which each phase pattern performs best and beyond which another phase pattern should be considered are also formulated. The efficiency of leading and lagging sequences are addressed. The study shows that when some left-turn protection is needed, the less restrictive protected / permissive phase should be used unless there is a severe safety problem which necessitates the use of protected only phase. The permissive only phase is recommended for low left-turn and opposing volumes.


Related Articles

  • Investigation of surrogate measures for safety assessment of urban two-way stop controlled intersections. Lorion, Adrian C.; Persaud, Bhagwant // Canadian Journal of Civil Engineering;Dec2015, Vol. 42 Issue 12, p987 

    Crash prediction models used to estimate safety of highway segments and intersections are traditionally developed using various traffic volume measures. There are issues with this approach and surrogate safety measures such as conflicts and delays have been proposed to overcome them. This study...

  • METHODS FOR THE ASSESSMENT OF PERFORMANCE INDICATION MEASURES AT AMAKOM INTERSECTION AND THEIR APPLICATION IN MICRO SIMULATION MODELING. Kwesi Nyantakyi, Emmanuel; Appiah Owusu, Prince; Kwame Borkloe, Julius // International Journal for Traffic & Transport Engineering;2014, Vol. 4 Issue 1, p35 

    Signalized intersections are vital nodal points in a transportation network and their efficiency of operation greatly influences the entire network's performance. Traffic simulation models have been widely used in both transportation operations and traffic analyses because simulation is safer,...

  • Research on the Calculation Model of Signal Intersection Delay. Zhenying Yan; Zhihui Song; Shuangchun Lv // Applied Mechanics & Materials;2014, Issue 587-589, p2096 

    The researched object of this paper is the main intersections in Hohhot. The HCM model is chosen to estimate the delay of signal intersection after comparing the advantages and disadvantages of various delay models. Use the spotting sample method to collect field data, then compare the results...

  • Impacts of Radio Access Protocols on Cooperative Vehicle Collision Avoidance in Urban Traffic Intersections. Fan Yu; Biswas, Subir // Journal of Communications;Sep2008, Vol. 3 Issue 4, p41 

    This paper presents the design of a Cooperative Collision Avoidance application, and evaluates its performance with DSRC-recommended 802.11 Medium Access Control (MAC) and with a novel Vehicular Self- Organizing MAC (VeSOMAC) protocol. VeSOMAC is designed as a fully distributed TDMA protocol...

  • ANALYSIS OF NON-STOP TRAFFIC AT ISOLATED SIGNALISED INTERSECTION BY MEANS OF DISCRETE EVENT SIMULATION. Al-Aomar, R.; Alyousef, B.; Al-Omari, B. H. // International Journal of Simulation Modelling (IJSIMM);Dec2007, Vol. 6 Issue 4, p230 

    This paper includes a simulation-based analysis of non-stop traffic at isolated signalised intersections. A Min-Max traffic control method is proposed to replace conventional traffic signals and maintain a continuous traffic flow. The method applicability is tested by means of Discrete Event...

  • Simulated safety performance of rear-end and angled vehicle interactions at isolated intersections. Cunto, Fl├ívio; Saccomanno, Frank F. // Canadian Journal of Civil Engineering;Nov2009, Vol. 36 Issue 11, p1794 

    This paper applies a calibrated microscopic simulation model to assess the safety implications of signalization at a stop-controlled isolated intersection. Safety performance is measured in terms of a crash potential index (CPI) that makes use of time-specific vehicle parameters, such as...

  • Fuzzy Traffic Control for Three-sided Intersection. Pranevicius, H.; Kraujalis, T. // Transport Means 2008: Proceedings of the 12th International Conf;2008, p55 

    This paper presents fuzzy logic traffic controller for three- sided isolated intersection. This controller gets and computes data on real time then it makes decision what to do, extend or to terminate the current green phase it depends on vehicles demand. Two methods has been compared: fuzzy...

  • Optimization of Green Wave Signal Timing for Urban Intersection Based on VISSIM--A Case Study of Shenzhen University Section of Baishi-Road. ZOU Liang; PANGYu-ju; PAN Zhou; PAN Dong // Research & Exploration in Laboratory;Aug2014, Vol. 33 Issue 8, p75 

    Nearby Shenzhen University, Baishi Road holds a large segment where traffic is steady at peak hours. The distance between the intersection of "Yue Hai Men Cun" and "Gui Miao Cun Kou" is 1.4km, and the signal timing plans at the two intersections are similar so that its traffic signal control can...

  • Danger is lurking on Loop 4. Ballinger, Dave // Hays Free Press (Buda, TX);11/8/2006, Vol. 103 Issue 30, p4 

    This article presents insights on the danger in Loop 4 in Texas. There is danger from the treaffic light at the intersection of Old San Antonio road to the railroad tracks near Buda, Texas. Buda police and Hays County deputies are just around the corner aware of the dangers at the intersection....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics