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Question: Using the survey data provided including the following files (Wg31º system), write a fitting conclusion :- Proj 1Q1- (2024).kcd Proj 1Q1- (2024).bot Proj 1Q1- (2024).mal Proj 1Q1- (2024).tr2 Proj 1Q1- (2024).mmb Annexure A.pdf (image file) Annexure A.jpeg (image file) Which must be accessed and downloaded from: - ‘Moodle’ – ‘Computer applications 3A’ – ‘Project 1’ – ‘Question 1’ The Topographical survey has extensively covered the area by means of an approx. 30m wide strip survey along the proposed route, which includes all natural and artificial features and existing services along the Examiner: Mr A Raghubar Computer Applications 3A (CPTA301) 2024 Semester I Page 2 of 6 road. This will serve as important information to the design and layout of the new tar road. The portion of road which is to serve as a taxi route has an expected length of approximately 5.0km upon completion. However, you are required to perform a full Road design utilising the Model maker and Road maker software to the following design specifications for a length of approximately 1.8 – 2.0km:- Design specifications for Single lane carriageway: Design speed 50km/hr Lane width 2.5m single lane Road camber - 2.5% left and right Kerb data Type: MK4 Shoulder width 1.5m slope= +4% Side slopes Cut= 1: 1 Fill= 1: 1.5 Trapezoidal Drain specifications slope 1= 1:1 width= 0.40m slope 2= 1:100 width= 0.20m slope 3= 1:1 width= 0.40m Layer works specifications: First (Top) layer: width= 2.5m thickness= 0.04m Second layer: width= 2.6m thickness= 0.10m Third layer: width= 2.7m thickness= 0.14m Road reserve= 15m Compaction factor= 0.90 Where the above design specifications cannot be satisfied, the values may be adjusted accordingly within reason, however any such changes must be justified in your report.
Based on the survey data provided and the given design specifications for the new tar road project, the following conclusions could be reached: 1. The topographical survey data provided a comprehensive overview of the features along the proposed route. An understanding of the natural and artificial features, as well as existing services, will significantly aid the implementation of the road design in the Model maker and Road maker software. 2. Given the design specifications for a single lane carriageway, careful consideration of factors such as design speed, lane width, road camber, kerb data, shoulder width, and side slopes is required. The detailed outline of the layer work specifications and trapezoidal drain specifications will be vital for constructing a road to match the required quality and design standards. 3. The project has the flexibility of reasonably adjusting design values where the current specifications cannot be met. These changes should, however, be justified and documented in the report. 4. The proposed designs will allow for the successful completion of approximately 1.8-2.0km of the overall expected 5.0km of the road serving as a taxi route. 5. It is essential to maintain the compaction factor at 0.90 and the road reserve at 15m to ensure optimal road longevity and safety. In conclusion, close adherence to these design specifications, while applying the data from the topographical survey, should ensure the creation of a road that fulfils the outlined requirements. Furthermore, inconsistencies requiring adjustments should be clearly stated and justified in the final report.
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