• Preet Amin
• Pinakin Patel

The gap acceptance study plays an important role in the determination of capacity and delay at un-controlled intersection and critical gap is one of the important parameter associated with this study. Many studies on critical gap were carried out but they are carried out in context of developed countries where traffic is uniform and rules of priorities as well as lane disciplines are willingly followed, thus there is a need to carry such type of study in developing countries like India. Where, priority rules are less followed which consequently create more clashes on intersections and modelling of such behaviour becomes complex. This paper presents the study of gap acceptance behaviour of drivers on an uncontrolled intersection. In order to examine the gap acceptance behaviour of drivers, 4-legged uncontrolled intersection located in Ahmadabad in the state of Gujarat was selected. Video recording technique was adopted for collection and AVS video editing is used for analysis of the data. Different conventional methods are used to calculate the critical gap for through and right turning movements from the minor road. Gaps are analyzed for three different vehicle types namely 2-Wh, car and 3-Wh. A comparison between different existing conventional methods of critical gap determination is carried out and their comparative analysis is presented in this study.

Critical gap, Gap acceptance, Two Way Gap Acceptance, Uncontrolled intersection

"A STUDY OF CRITICAL GAP ESTIMATION APPROACHES AT FOUR LEGGED UN-SIGNALISED INTERSECTION IN URBAN AREA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.113-117, July-2018, Available :http://www.jetir.org/papers/JETIRC006327.pdf

"A STUDY OF CRITICAL GAP ESTIMATION APPROACHES AT FOUR LEGGED UN-SIGNALISED INTERSECTION IN URBAN AREA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp113-117, July-2018, Available at : http://www.jetir.org/papers/JETIRC006327.pdf