Feasibility Study and Rapid Construction of Flyover At Sahakari Zin Intersection on NH-8, Himmatnagar

Abstract— Development of the any urban or suburban area is depends on the efficient delivery of urban services. Major cities throughout the nation are experiencing considerable population Growth and consequently the traffic demands on each city's transportation infrastructure also Increase With these increased traffic demands comes decreased Mobility. At this junction number of accident occur due to high speed of vehicle, traffic delay, risk of pedestrian life , lack of proper facility like symbols, signals, and marking. So it can need the improvement. At Sahakari zin Intersection National Highway-8 and state Highway145 are crossed. On the NH-8 vehicle design speed is 80 km/h. due to high speed vehicle no of accident occurs. And delay on state highway. At this intersection Traffic Flow about 30,000 PCU/day. The improvement of the intersection by the different alternatives like provide rotary, signal or construction of the flyover, divert the traffic at the intersection. Out of this alternative, Flyover suggested for the current traffic flow at this intersection and during the construction of flyover minimize tra ffic delay by the road safety Audit and using the rapid construction method for the construction of the flyover at intersection.


I. INTRODUCTIO N
At Sahakari Zin intersection, NH-8 Connected Ahmedabad and Udaipur. And State Highway 145 connected himmatnagar city and Rural area. On this intersection no of accident occurs due to high speed vehicle on NH-8. And heavy traffic flow in both direction. traffic delay, risk of pedestrian life,lack of p roper facility like symbols, signals, and marking are major problem at this junction. this problem we have four alternatives are Flyover, Rotery intersection, signalize intersection, Divert Traffic on other Road. Out of this four alternatives construction of flyover is advantageous at this intersection. Increasing population growth about 15.5% per decade. And Avg 48157 no of vehicle are increase per year so that rapid construction of flyover at this intersection

II. OBJ ECTIVES OF STUDY
1) To study of the present situation of traffic at the intersection. 2) To analyze the present situation. 3) To predict No. vehicles for future next 10 year. 4) To suggest the flyover, their dimensions, construction aspect, good aesthetic view of flyover with maximu m use of green material. 5) Feasibility of using waste material use in construction to minimize the pollution. 6) Minimize traffic delay during the construction with the road safety audit.

Aim of Study
The aim o f the study is to minimize the accident at the selected intersection of himmatnagar by imp roving it. Suggesting techniques of rapid construction of flyover to minimu m t raffic delay during the construction of the flyover and make the view of flyover aesthetic.

Fig.2 Location of Intersection
At this intersection 20 m wide four lane national h ighway cress the 15m wide four lane state highway. Heavy traffic flow on NH cross the intersection that is influence to pedestrian, traffic delay on SH.its lead to accident occur.

Traffic Volu me
At this intersection Himmatnagar to Udaipur approach very heavy traffic flow about 30000 PCU/day both direction. It is cross this intersection with high speed so number of accident occur at place and it is influence to pedestrian and disturb the low traffic on other approach(SH-145) co mpare to NH. So that smooth traffic flow on both approach construction of flyover needed. And construction of flyover complete in short time because of min imu m traffic disturbance and safety of pedestrian during the construction of flyover.
Method of Rapid construction of flyover 1. cast-in situ method 2. pre-cast method Pre-cast method is more advantageous over the cast in situ. But in pre-cast method having large investment and it is economical for the large pro ject. Precast method is rapid construction method of flyover.it is accelerate the bridge construction. And batter quality control maintain in precast method. In precast method prefabricated bridge element cast in casting yard than transported to site so reduction time in cast in place, curing etc. prefabricated element placement by the various method by longitudinal launching, vertical launching, and very fast track construction by the SPMT's (Self prop modular Transporter ) but in india it is not economical for the small pro ject. For this project we have suggest the prefabricated bo x section launching by the vertical lifting.
Pre-cast method Impact on ;  Reduce Total project delivery t ime  Increase Site constructability  Maintain Material quality and its durability  Reduce Traffic impacts  Reduce Onsite construction time  Eliminate Weather related delays  Accelerated Bridge construction can also minimize Environmental impacts.  Reduce Impact to existing roadway alignment  Utility relocations

V. CONCLUS ION
It is very clear to in u rban area increasing the population and also increasing the no of vehicle it lead to traffic congestion. At sahakari zin intersection occur number o f accident, and traffic delay for th is problem construction of flyover is needed at place.  By analysis of collection of data we have The suggested flyover bridge will also carry the future traffic safely 30 year.  The construction of flyover is accelerated by the prefabricated bridge element.  To min imize the accident by construct flyover and smooth traffic flo w in both direction.  The aesthetic view of flyover is increase view of city and increase the land value near the intersection.  In future there is a scope as providing this flyover as a toll road for a generating revenue and maintaining the speed of various vehicles .  In Himmatnagar nu mber of ceramics s o we can ceramic waste use in construction( embarkment) to minimize the pollution.