Valuing Domestic Transport Infrastructure: A View from the Route Choice of Exporters

A key input to quantitative evaluations of transport infrastructure projects is their impact on transport costs. We propose a new method of estimating this impact relying on widely accessible customs data: by using the route choice of exporters. We combine our method with a spatial equilibrium model to study the effects of the massive expressway construction in China between 1999 and 2010. We find transport costs are 20% lower on expressways than on regular roads. The expressways construction increases aggregate exports by 10% and domestic trade by 14%. It generates 5.1% welfare gains, implying a 150% net return to investment.

EFFECT OF SOCIAL AND ENVIRONMENTAL FACTORS ON EXPRESSWAY CONSTRUCTION IN SRI LANKA

Expressway construction projects are one of the crucial infrastructure projects for a country. Hence, assessment of environmental and social implications prior to initiation of the expressway construction project is vital. Thus, the research aims to analyse effect of social and environmental factors on expressway construction in Sri Lanka. Initially a comprehensive literature review was done to discuss on expressway construction in Sri Lanka and environmental and social implications of expressway construction in global context. The study followed a qualitative approach. Hence, four expert interviews were carried out to explore more on the same context limiting to Sri Lanka. Experts were selected from only on-going expressway project in Sri Lanka, central expressway project. Moreover, collected data were analysed through manual content analysis. The study findings highlighted viaduct construction, land acquisition and rock blasting as the major activities relating to environmental implications of the expressway construction projects. Thus, rational, logical, scientific, and technical selection of the routes is the most effective and efficient mean in minimizing adverse impacts. Hence planning of these activities should be done with due care by authorities only after proper feasibility studies. Further, major factors affecting social implications of the expressway construction have been identified as settlement, livelihood, public infrastructure and health and safety. Hence, resettlement action plans need to be updated to comply with the identified requirements through environmental and social factors.

Impact of Environmental Engineering Regulation Model in Expressway Construction

As per current circumstance about condition effect of turnpike development and insufficiency in ecological designing assurance proportions of freeway development, jieke hypothesis was utilized to break down the areas of eco-condition and their jobs. Essential idea and structure of eco-condition framework was expounded, and its application prospect in condition assurance of interstate development was investigated. Finally, guideline model of ecological effect in turnpike development was advanced. By the model, eco-condition effects can be powerfully balanced during the time spent turnpike development. Further, on the precondition of guaranteeing normal freeway development, natural effects were quantitatively decreased to the base degree. It gives scientists a groundbreaking idea and strategy about eco-ecological building effect of turnpike development.