Posted inHighway Engineering
The ‘level of service’ approach
Introduction ‘Level of service’ describes in a qualitative way the operational conditions for traffic from…
Posted inHighway Engineering
Speed-density relationship
In a situation where only one car is travelling along a stretch of highway, densities…
Posted inUncategorized
Basic Elements of Highway Traffic Analysis
Introduction The functional effectiveness of a highway is measured in terms of its ability to…
Posted inHighway Engineering
Highway CBA worked example
Introduction It is proposed to upgrade an existing single carriageway road to a dual carriageway…
Posted inHighway Engineering
Use of economic indicators to assess basic economic viability
Once the two parameters of project life and discount rate are set in place, these…
Posted inHighway Engineering
Economic life, residual value and the discount rate
A highway project is often complex and long term, with the costs and benefits associated…
Posted inHighway Engineering
Identifying all relevant costs and benefits
The application of cost-benefit for project assessment in the highway area is made more complicated…
Posted inHighway Engineering
Cost-benefit analysis (CBA)
Introduction Within Europe, the method usually adopted for the economic evaluation of highway schemes, termed…
Posted inHighway Engineering
Scheme Appraisal for Highway Projects
Introduction Once a transportation plan has been finalised and the demand along each of its…
Posted inHighway Engineering
A full example of the four-stage transportation modelling process
Trip production Assume a study area is divided into seven zones (A, B, C, D,…