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1700924 Vol 2 · Issue 8 Download Paper

Level Of Service (LOS) Effect In Terrain Conditions

S RAJI Prof. A Jagannathan

Subject area: Science,Engineering and Technology  ·  Area of research: Civil Engineering

Abstract

The Road Traffic flow is a process that which involves the interaction between road facility, vehicles and characteristics of road users. The stochastic nature of traffic stream flow gives random variations in vehicles, user characteristics and their interactions. Further, traffic stream characteristics also changes due to variations in design of road facilities. Level of Service (LOS) applied for quantitative measure to represent quality of service provided by road facility varies between Levels of Service ?A? through ?F? where, LOS?A? represents the highest and LOS?F? representing the lowest. Though Highway Capacity Manual presented the level-of-service concept for highway capacity analysis, with Capacity and flow as parameters for measuring LOS , but with minor changes later speed, density, headway, spacing etc. have also been used for evaluating LOS. However, the concept of LOS is presently applicable only to plain terrain conditions but not rolling terrain. Therefore the standard conditions cannot be applied for all terrains and LOS need to be assessed for Terrain having more than 2% gradient and demographic conditions where higher levels of roads such as Highways and freeways are not provided. This paper represents the study of roads carried out in Port Blair, the capital of Union Territory of A&N Islands , to compare LOS for the prevailing the gradient and capacity with the LOS levels recommended by various Standards

Keywords

LOS, V-C Ratio, Modal Speed, Geometric Standards

References

[1] A report by Public Works Road Division, “Level Of Service Standards for the Township of Norwich”, pp. 10-25

[2] Afanasyev Aleksandr and Panfilov Dmitrii, (2016), “Estimation of Intersections Traffic Capacity Taking into Account Changed Traffic Intensity”, 12th International Conference "Organization and Traffic Safety Management in large cities",SPbOTSIC, Transportation Research Procedia, Elsevier, pp. 2-7

[3] Andrew O’Brien’, (1995), “ Traffic Calming- Ideas into practice”, Resource Papers for the 1995 ITE International Conference, pp. 199- 203.

[4] Arasan V.Thamizh and Dhivya.G., (2001), “Simulation of Highly Heterogeneous Traffic Flow Characteristics”, 24th European Conference on Modelling and Simulation, pp. 81-87

[5] Basu, D., Maitra Roy, S., Maitra, B. (2006) “Modeling passenger car equivalency at an urban mid-block using stream speed as measure of equivalency.” European Transport/TrasportiEuropei, 34, pp. 75-87

[6] Boora Amardeep, Ghoshb, Indrajit and Chandra Satish, (2016), “ Identification of Free Flowing Vehicles on Two Lane Intercity Highways under Heterogeneous Traffic condition”, International Symposium of Transport Simulation (ISTS’16 Conference), Transportation Research Procedia 2, Elsevier, pp. 130-140.

[7] Danilina Nina and ElistratovDmitrii, (2016), “Organization of Municipal Transport Access Control System. Passenger Service Models”, 12th International Conference "Organization and Traffic Safety Management in large cities",SPbOTSIC, Transportation Research Procedia 20 ,Elsevier , pp. 132-137

[8] ErrampalliMadhu and KayithaRavinder, (2014), “Traffic management plan for Port Blair city, India”, 11th Transportation Planning and Implementation Methodologies for Developing Countries,TPMDC , Transportation Research Procedia 17, Elsevier, pp. 548 – 557.

[9] Greenshields B.D., (1960), “The Density Factor in Traffic Flow,” Traffic Engineering, Vol. 30, No. 6, pp.26-30

[10] Highway Capacity Manual. Transportation Research Board, 2000, Washington, D.C., pp.18-28

How to cite this paper

S RAJI, Prof. A Jagannathan "Level Of Service (LOS) Effect In Terrain Conditions" Iconic Research And Engineering Journals Volume 2 Issue 8 2019 Page 32-36
S RAJI, Prof. A Jagannathan "Level Of Service (LOS) Effect In Terrain Conditions" Iconic Research And Engineering Journals, vol. 2, no. 8, Feb. 2019
S RAJI, Prof. A Jagannathan (2019). Level Of Service (LOS) Effect In Terrain Conditions. Iconic Research And Engineering Journals, 2(8).
S RAJI, Prof. A Jagannathan "Level Of Service (LOS) Effect In Terrain Conditions" Iconic Research And Engineering Journals, vol. 2, no. 8, Feb. 2019.
@article{1700924,
      author = {S RAJI, Prof. A Jagannathan},
      title = {Level Of Service (LOS) Effect In Terrain Conditions},
      journal = {Iconic Research And Engineering Journals},
      year = {2019},
      volume = {2},
      number = {8},
      pages = {32-36},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1700924.pdf},
      abstract = {The Road Traffic flow is a process that which involves the interaction between road facility, vehicles and characteristics of road users. The stochastic nature of  traffic stream flow gives random variations in vehicles, user characteristics and their interactions. Further, traffic stream characteristics also changes due to variations in design of road facilities. Level of Service (LOS) applied for quantitative measure to represent quality of service provided by road facility varies between Levels of Service ?A? through ?F?  where, LOS?A? represents the highest and LOS?F? representing the lowest. Though Highway Capacity Manual presented the level-of-service concept for highway capacity analysis, with Capacity and flow as parameters for measuring  LOS , but with minor changes later speed, density, headway, spacing etc. have also been used for evaluating LOS. However, the concept of LOS  is presently applicable only to plain terrain conditions but not rolling terrain. Therefore the standard conditions cannot be applied for all terrains and LOS need to be assessed for Terrain having more than 2% gradient  and demographic conditions where higher levels of roads such as Highways and freeways are not provided. This paper represents the study of roads carried out in Port Blair, the capital of Union Territory of A&N Islands , to compare LOS for the prevailing the gradient and capacity with the LOS levels recommended by various Standards},
      keywords = {LOS, V-C Ratio, Modal Speed, Geometric Standards},
      month = {February},
  }