Authors: Surbhi Semwal, Ajay. K. Duggal, Dr. Sanjay K. Sharma
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In this paper, the survey was conducted in the Sirmour district of Himachal Pradesh where National highway 72 (NEW NH-07) runs through the district and other state highways connecting the state to the rest of the country. However, due to the district\'s abrupt bends, cliffs, and narrow streets, it has experienced the large number of traffic accidents. As a result, the study of the accident blackspots on this stretch is crucial for road safety. The study area lies between Dhaulakuan to Kyarda having a length of 9 km in the plain area has already identified 4 blackspots by police authorities and P.W.D. Department. The essential accident data of 4 years was collected to analyse the selected stretch. This paper deals with the identification of such accident black spots using the method Weighted Severity Index.
According to World Health Organization, deaths due to accidents is the 8th leading cause of death and the first largest of death among children having age 5-14 years and adult 15-29 years. In Himachal Pradesh, the road is the most common mode of transportation. Roads are Critical infrastructure for the rapid economic expansion of a state or nation.
In Himachal Pradesh, NH 72 (New NH-07) has a length of 57 km i.e., Kala Amb to Paonta Sahib. It passes through the district Sirmour and several state highways are making the state well connected to other parts, but high terrain and typical topography of the highways, limited lanes, sharp turns, reckless and intoxicated driving contribute to the devastation. The road section has been analyzed by the police department and PWD department as per road accidents and identified 13 nos. black spots. "Black spots" are areas that have more accidents than other similar sites on the road system, or regions with an accident number and/or rate higher than a preset minimum.
Accidents do happen on account of one or a mix of various factors such as:
The primary goal of this research was to aid in the development of transportation security and the reduction of the impact of accidents and also to recognize the importance of safety in road design at identified black spots.
The committee of the concerned NH Division investigates the blackspot in concern to see if any deficiencies in road geometric design were to blame for the numerous incidents. After consulting the local police to figure out what's causing the accidents, different short and long-term strategies to limit the number of such incidents were implemented. Short-term solutions that include signs and markers should be implemented and long-term remedial treatment must first determine whether adequate land is available, and then the suggestions must be submitted for approval.
The selected location for the case study of identified black spots was on the NH-07 and the study area lies between Dhaulakuan to Kyarda having a length of 9 km in plain area and having an average width of flexible pavement is 10m with paved shoulders. In the project area police authorities and P.W.D. department has already identified 4 nos. blackspots as shown in Fig,1
A. Assessment Of Black Spots
Various methods to analyze blackspots are as follows:
II. SCOPE OF RESEARCH
To aid in the development of transportation security, reduction in impact of accidents, recognize the importance of safety in road design at identified black spots and to adopt the awareness of road safety for non-motorized as well as motorized road.
A. Objectives of study
The objectives of the study were the:
III. RESEARCH METHODOLOGY
The following steps was carried out for achieving the objectives of the research: -
IV. RESULTS ANALYSIS
The results were obtained separately for the considered 4nos blackspots on NH 07 and were compared to find out the least and most accident-prone area.
A. Visual examination
The visual examination of existing road on NH07 was carried out to assess the present condition of roads. This inspection was conducted in the period between 2018-2020. Following deficiencies were found as follows:
B. Secondary Examination
The accidental data of three years from 2018 to 2020 was collected such as total number of accidents, number of deaths and the type of accidents. This data was used to calculate the WASI value of the given blackspot. As a result, the blackspot would undoubtedly be detected.
The calculated WASI of 4nos blackspots are shown as below:
Based on the detailed study of secondary data and with the help of weighted accident severity index method we concluded that blackspot named as MISSERWALA has higher value of WASI i.e., 3.25 and blackspot named as KYARDA has least value of WASI i.e., 2.98. Thus, the WASI for all the four stretches (blackspots) is in very close range of nearly 3.0 to 3.25.
VI. FUTURE SCOPE
Proper remedial measures from IRC codes and MORT&H specifications are hereby suggested to reduce the road mishaps as the road infrastructure is important for growth of Indian economy in present times. These are applicable for all the four sections.
The paper attempts to study the selected stretch, identify and analyze the pattern of accidents and various pattern of accidents and various parameters responsible for accidents in the study area i.e., NH07 stretch between Dhaulakuan to Kyarda. The weighted accident severity index (WASI) method was used to rank the blackspot area. The required data was collected from HPPWD department and RADMS. After analyzing and evaluating the entire data it was concluded that Misserwala had high WASI value i.e.,3.25 hence it was more prone to road accidents and major reasons for accidents on blackspots were poor visibility, unclear intersections, carelessness of driver, over speeding, narrow bridge, absence of pedestrian path, absence of crash barriers, lack of road markings, sign boards and zebra crossing and so proper remedial measures from IRC codes and MORTH were suggested and implemented to reduce the road accidents.
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