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Table A1.1 contains a summary of the key physical attributes for each section. Each section is considered homogeneous in terms of its physical attributes (for example, road class, climate, carriageway width, geometry, pavement condition, traffic flow, and axle loading).įor this case study, the road has been divided into two sections based on those physical attributes that vary along its length. The road section is the basic entity for all calculations of pavement deterioration, construction and maintenance costs, and economic analysis. The road sections to be analysed should be defined within the State Roads network and vehicles types that use the road are defined in the National Fleet. Similarly, the vehicle fleet has been pre-defined in the Vehicle Fleet folder under the name National Fleet. The road network to be used for the project has been pre-defined under the name State Roads in the Road Network folder.
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The project start year has been defined as 2017 with the analysis period (duration) specified as 20 years. With Project – Maintain existing gravel road before upgrading to a bituminous pavement, followed by maintenance of the bituminous pavement. Without Project – Maintain existing gravel road. The economic feasibility of the project is assessed by comparison of a project alternative against a base-case alternative: It was observed that both the degree of conflict between motorised and non-motorised transport and the effect of road side activities on traffic flow were insignificant. Traffic and condition data are available from surveys undertaken in 2016. The gravel road is X km long and passes through varying topography.įor analysis purposes, two sections, based on geometry, pavement condition, and traffic volume can represent the road. The road to be upgraded is classed as a secondary road and it is situated in sub-tropical/humid climate. Throughout this document some data has been defined using a letter, for example, “the gravel road is X km long” – the student should substitute a sensible value for X. The data to be used is either defined in this document, within the HDM-4 default workspace, or where not provided the student can assume sensible values.
#Programa hdm 4 upgrade#
The project analysis will look at upgrade an existing gravel road to a paved standard. The purpose of this coursework is for the student to demonstrate that they understand the steps required to perform a project analysis using HDM-4 and to access the economic benefits resulting from such the project. I am sending you my assignment with more explains in order to make it easy for you.