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Abstract: By rerouting traffic around small and medium sized communities, bypasses can provide a number of direct transportation benefits, such as diverting unwanted traffic, increasing roadway safety, reducing travel delays, and improving local access for people and goods. While these traffic impacts are well-understood, bypasses also have the potential to impact local economies. Area business owners may fear potential reduction in sales, while others look forward for the promoting of development along the new bypass. The reconnaissance survey is done to determine the pavement condition and the daily variation of traffic is analyzed by seven days traffic volume count. The growth rate is analyzed and adopted accordingly. The lane configuration is adopted according to the capacity of the lane in reference with IRC manual. Topographic drawing is done from topographic survey. The existing alignment is studied completely, alternative routes are analyzed and the best alternative is chosen. Using Mx Roads the geometric design of the alignment (Horizontal alignment and vertical alignment) are fixed simultaneously Median, carriageway, super elevation and earthen shoulder are designed.
INTRODUCTION:
National Highway NH45C is a link connecting two important National Highways NH 45 at Vikkravandi and NH 67 at Thanjavur. The National Highway NH45C takes off from Km150+400 of NH 45 at Vikkravandi, traverse in south direction about 65km, after crossing Chidambaram – Viruddhachalam road (SH 70) it traverse in south – west direction and meets NH 67 at Km 80+600 near Thanjavur. It passes through Villupuram, Cuddalore, Arriyalur and Thanjavur Districts of Tamil Nadu. It passes through major towns like Panruti, Neyveli, Sethyathopu, Kumbakonam and Papanasam.Panruti Town has been identified for the study, since ribbon development has been observed along the National Highway NH45C during our site visit along the corridor with the National Highway Authority.
II. DESCRIPTION OF STUDY AREA:
Panruti is a town, and taluk headquarters of Cuddalore district, Tamilnadu, India. Panruti is located between Cuddalore and Viluppuram. Panruti is famous for Jack fruit and Cashews. The Jack fruit grown here is exported worldwide and is very sweet. It is a business center of Cuddalore district. It is a great commercial area for more than a 200 years and 150 years old government school which was built by british east india company and more than 1000 year old temple Veeratteswarar temple in nearby Thiruvathigai.Panruti produces cashews, jackfruit, and many vegetables. Panruti plays a major role in the cashew export business, exporting to Malaysia, Australia, Singapore and United States. It is known for its famous international jackfruit market, from where jackfruit is exported to many other countries. It is also a commercial center of Cuddalore district.
III. DATA COLLECTION:
A. RECONNAISSANCE SURVEY:
The main objective of reconnaissance survey is to examine the general character of the area for the purpose of determining the most feasible route, or routes, for further more detailed investigations. Data collected should be adequate to examine the de feasibility of all the different routes in question, as also to furnish the Engineering-in-charge with approximate estimates of quantities and costs, so as to enable him to decide on the most suitable alternative. The survey should also help in determining any deviations necessary in the basic geometry standards to be adopted for the highway facility
B. ROAD INVENTORY:
An inventory of the Project Road was carried out through dimensional measurement and visual inspection. Features like chainage, terrain and land-use, height of fill or depth of cut, width of pavement and shoulders, railway crossing, important road junctions and geometric deficiencies, utilities etc., were recorded. From the analysis of the recorded data the results are discovered such as Predominately the Road width is 7.0 meters, the soil is Black cotton soil, the lands are build ups and agricultural area, the Embankment height is .2 meters, the carriageway is Bituminous and the condition is fair.
C. ROAD CONDITION SURVEY:
The project road section has riding quality varying from good to poor along its length. The pavement condition survey is carried out as a visual pavement surveys. At quite a few locations the pavement has been failed. The observed pavement condition of the project roadhas been divided into three categories, Good, Fair and poor, based on percentage of the crack area, pot-hole area, and raveling . Road condition survey data is analyzed and the results are discovered such as 85% of the Pavement is fair and 15% of the pavement is poor.
IV. TRAFFIC VOLUME COUNT:
Traffic should be counted at each point at least twice every year. One count should be taken during the peak season of harvesting and marketing and the other during the lean season. Each time the count should be made for a full week spread over 7 consecutive days and 24 hours of each day. Traffic census should not generally encompass abnormal conditions of traffic like a fair or exhibition. In such cases, the count in the area should be postponed by a few days till normalcy returns.
A. Recording of seven days traffic volume count survey at kandarakottai town:
Under the present study, the manual 7 days traffic volume counts were carried out at one location round-the-clock for seven consecutive days. Counts a day is divided into 3 shifts of 8 hours. Recording should be done for each direction of travel. The information collected in the daily summary sheet should be transferred to weekly traffic summary form. The average daily traffic for the week should be then determined. The survey stations have been located away from urban and villages to minimize interference of local traffic.Traffic survey is conducted at existing chainage of 21+000 near kandrakottai town