BibTeX:

@article{IJIRSTV3I4022,
     title={Operational Effects of Critical Gaps and Turning Movements on NH-44 In Ranga Reddy District},
     author={Gummadi Chandu, Eshrak and M.Kameswara Rao},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={3},
     number={4},
     pages={19--24},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV3I4022.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

In this paper, a brief practical review is presented on U-turns have been considered among the most hazardous locations on highways. The maneuvering of the driver at these locations is quite complex and risky. The behavior of the driver when turning is governed by the gap acceptance concept. In this study, the driver’s gap acceptance behavior at U-turn median openings was studied. U-turn median openings in City were investigated. Data was collected by video/manual recording. Two models were developed in this study. The first model estimated the time gap accepted by the driver. The second model calculated the turning function, which was used to estimate the probability of accepting gaps. Results showed that male drivers tended to accept shorter gaps than female drivers. Also, younger drivers were more likely to accept shorter gaps than older ones. The waiting time was also found to affect the gap acceptance behavior of the drivers. Drivers tended to accept shorter gaps after longer waiting times. Establishment of un-signalized median openings has expanded in numerous urban districts of cities in India. The thought process behind this establishment is to take out issues connected with illicit U-turns occurring at crossing points and other transportation facilities near these median openings on multi-lane urban streets. Gap Acceptance concept of U-turn drivers is an imperative angle at un-signalized median openings for deciding limit of accidents. Critical Gap structures the sole parameter in Gap acceptance models for assessing U-turns at median openings. Estimation of critical gaps for U-turn vehicles at median openings under mixed traffic conditions have not been addressed until today. U-turn at midblock median opening is frequently provided in developing countries to facilitate the local access. Movement capacity of such U-turn is of interest for deciding the necessary traffic management. HCM 2010 contains the methodology for U-turn capacity estimation, which is based on gap acceptance theory and assumption of major traffic headway distribution. This project evaluated the gap acceptance capacity model and proposed an adjustment method of the Data collection at a U-turn.

CBR, Dynamic Cone Penetration, Correlation, Investigation