Please use this identifier to cite or link to this item: http://localhost:8081/xmlui/handle/123456789/5842
Title: MIXED TRAFFIC VEHICULAR INTERACTIONS AT HIGHWAY INTERSECTIONS
Authors: Agarwal, Pradeep Kumar
Keywords: CIVIL ENGINEERING;MIXED TRAFFIC;VEHICULAR INTERACTIONS;HIGHWAY INTERSECTIONS
Issue Date: 1989
Abstract: The efficiency of the transportation network depends basically on the accuracy of the estimation of the basic design input i.e. the traffic demand. The demand being a stochastically variable requires an accurate assessment of inherent flow and vehicular interactions. The unrestricted mixing of various vehicles at highway intersections under mixed traffic flow without their physical seggregation creates various complex problems such as speed reduction and difficult turning manoeuvers. These problems result in significant amount of vehicular interactions at highway intersections. Intersections are the important part of a highway system governing the efficiency, speed, capacity and safety of tra-ffic operations. Traffic may otherwise flow freely on a road but it may come down to a crawling speed at intersections. Hence, highway intersections have a very important bearing on the overall capacity and level of service provided by a highway system. A critical survey of the literature indicated that no suitable and comprehensive study is readily available for the specific traffic and, intersection conditions, prevail-ing in India. Hence, an attempt has been made in this study -to provide some direction of thinking and an insight into the overall mechanics of flow at intersections, The objective of the present study) is to present the vehicular interactions and aggregate them to see that how much increase in effective 11 traffic occurs due to turning manoeuvres at intersections /on as compare to the effective traffic/straight roads approach- ing co. intersection area. The field data of some 3-leg inter- sections lying on NH 24, obtained through video recording studies have been used to establish relationships for vehi-cular interactions i.e. space-headays, lateral clearances and speeds of the vehicles. The turning movement factors for turning traffic and intersection factors for through traffic at 3- leg inter-section have been obtained for each vehicle type. These values for all vehicles have also been developed and used as an appro-ximation for analysis of the intersections for unknown vehicle! composition. Mathematical model based on pavement occupancy concept is derived and built into a computer analysis program to obtain the effective equivalent volume (EE V), capacity of the intersection and intersection occupancy level, which is a quantitative measure of level of service. Hence,this study will pave the way for further detailed analysis, which will be helpful in planning, in design and in improving the inter-sections facilities.
URI: http://hdl.handle.net/123456789/5842
Other Identifiers: M.Tech
Research Supervisor/ Guide: Jain, S. S.
Gupta, A. K.
metadata.dc.type: M.Tech Dessertation
Appears in Collections:MASTERS' THESES (Civil Engg)

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