Develop the Alignment(s) for the Bypass Toute - Management Assignment Help

Assignment Task:

TASK:

INTRODUCTION A state highway. blown as Main Highway. currently passes through Mainville. a growing Jural centre with a population of ♦5.000. As a result of the township's economic growth the traffic using the highway has increased. leading to moderate to severe delays. The increased traffic has had negative emirotunental and social impacts for the residents of Mainvilk and recently there have been several accidents involving vehicles and pedestrians. 2 WHAT YOU NEED TO DO In response to these problems. the Department of Transport connuissioned a study that concluded the solution was to construct a new two-lane mu-way road to bypass Plainville. You have been contracted as a consultant by Department of Transport to design a route for this new Nlaimille bypass. The route must be designed to provide for the safe and efficient movement of vehicles around Nfaimille while keeping construction costs, land acquisition and environmental impacts to minimum levels. Working in a group. your task in this preliminary design phase is to propose, design and evaluate alternative aligonmins) for the new bypass. The design must comply with Austroads standards. e.g. Austroads Guide to Road Design. More information about the design project can be found in rite FrequentbAsked Questions file on Law 3 PRELLMINARY DESIGN METHODOLOGY 
3.1 Stakeholder Identification You are initially asked to identify stakeholders who are likely to be affected or influence the road project. with relevant justifications. 3.2 Initial route identification Your first key design task is to identify ONE or TWO routes (If gaup size is 2 or 3 respectively) for preliminary design evaluation. The rationale for initial route selection is at 
 

3.3 Alignment design a) Develop the alignment(s) for the bypass toute(s) having Kinard to the co-onlimilon of horizontal and venical alignments and the technical. environmental and social design consttainis This will involve the selection and computation of horizontal altionnent geometry and venical curve design making proper provision for sight distance and Klutzes consideration of curve radius. wryer-elevation development, transition length. vertical cunt length and geometry.. grades etc. • You should use ovil 3D for designin the alignment and senoritas &minty. Note that Road Proffer Map CAD.11le (ahor,) Is mailable on DIS, In which the mitring ground surface nos alined'. coded. • However. 'nu 3IUST oho provide mama! calculations for horizontal and vertical curies. Other design checks. e.g. new radius. super-elemtion detelopthent munition length. vertical (sate length. maximum grades. design loon etc. MUST also be discussed. b) Set chainage points at 20m intervals commencing at the take-off point. Note that for this exercise. the design line shall be the centreline. c) Calculate eatImork quantities using the 20m-usenal cross-sections over the length of the toad using Civil3D. Draw the mass-laid diagram (in scale) and discuss its progenies. Yost can either draw the mass-haul diagram using Excel or Civil3D. dl Prepare scale timings of: • The plan. showing ho¢amal ante details and cutiandifill exuanitiei. • The longitudinal profile along the design line showing vertical grading details and au-and-fill mquisernents. • 4 typical' aossi.semioni. (e.g.. a tangent. curves. through the lock. etc.) for each route. 
Dtawmg itiquilements ate presented in APPENDIX A. 
3.4 Estimation a) Compute the 20-year cost of the road ou the basis of costs advised by the Department of Transport (proposed bypass and no build). This will include constmction. acquisition. envizmunental. social and operations and maintenance costs. Relevant data can be found in Road Project Data tree! file 
 

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