Showing posts from April, 2014

Highway Economics and Finance - part 3( Economic analysis)

This is the 3rd part of our topic 'Highway Economics and Finance', in first part we talked about the need of highway economics and the some of the road user benefits with the vehicle operation cost. In second part we talked about the Highway costs which includes the capital cost and the maintenance cost. If you want to go again through the previous articles please visit the links below:
Highway Economics and Finance -part 1.Highway Economics and Finance - Part 2 (Highway Costs)
Economic analysis of a highway improvement aims at determining the monetary benefit due to the additional expenditure. The analysis also helps to decide the most economical proposal among various alternatives. Methods of Analysis: Methods of analysis of the economic justification of a highway project has same principle, that benefits must qualify for the expenditure on the improvement by comparing them with some appropriate method. There are various methods of analysis but the most common are as give…

Highway Economics and Finance - Part 2 (Highway Costs)

In first part of this topic we have discussed about the various highway user benefits and highway operation costs. Being continuation of the same topic in this 2nd part we are going to discuss the highway costs.

Highway Costs
In general the total highway cost for road user benefit analysis is the sum of the capital costs expressed on an annual basis and the annual cost of maintenance.  This total cost for highway improvement is obtained from the estimate prepared from the preliminary plans.
The total cost of highway improvement project is calculated from the following components:

Right of WayGrading, drainage and minor structureMajor Structures like bridgesPavement and appurtenancesAnnual cost of maintenance and operationAnnual Highway cost: The annual cost is considered in the economic analysis of highway projects. Instead of considering the overall cost of a project the annual repayment of a capital loan plus the interest over a specified period of time of the annual capital cost…

Highway Economics and Finance -part 1.


Introduction: Improvements in the highways results in various benefits to the road users such as:

Reduction in the vehicle operation costReduction in the travel time and resultant benefits in terms of time cost of vehicles and passengers.Reduction in the accidents rates.Ease of driving and improved level of services.increased comfort to the passengers. This indicates that level of improvement and service of a road may be assessed from the benefits to the road users. The improvements in road net work also benefits the land owner by providing better access and consequently enhancing the land value.The cost of the land, materials, construction work and of other facilities should be worked out.  In terms of the economic justification for the improvements, the cost reductions to the highway users and other beneficiaries of the improvements during the estimated period should be higher than the investments made for the improvement.
Therefore there is a strong need of analysis in planning …

Equipment Used for Bituminous Pavement Construction

The main list of the equipment that we need for the construction of the bitumen pavements are:

BoilerSprayer/Distributor Hot Mix PlantsCold Mix PlantsTruck/DumperMechanical Pavers/ FinishersRollersBoilers: Boilers are used to soften the bitumen by heating it to certain temperature for its easy application.Sprayer/Distributor: Sprayers are required for spreading/distributing the bitumen on the pavement.  If the bitumen is applied with pressure, they are known as pressure distributors.Hot Mix Plants: Hot mix plants are required for mixing the aggregates, bitumen and any other required material to prepare the hot mix of the asphalt concrete. Aggregates are bitumen are needed to be heated up to a temperature of 150 to 200 degrees Celsius. Cold Mix Plants: Cold mix plants are required for mixing up the emulsion and the aggregates and so the main difference between the hot mix plants and cold mix plants is that we don't have to heat up the aggregates before mixing. Cold mixes are pr…