Transport Infrastructure and Regional Development Budapest University of Technology and Economics, 2017 Content The Debate – Coherences between transport investements and regional development Evaluating transportation alternatives Transport investment and economic growth The Debate There is a fundamental link between growth in transport investment and economic growth It has been argued over the last 50 years that there is a clear relationship over time between GDP growth and a range of measures of transport and transport-related investments During this period also: Increase in trade within and between countries, demand for travel Many other measures of wealth or well-being have also increased in a similar way: the growth in income levels, the purchase of consumer goods, the numbers of people in schools, life expectancy, etc. Transport investment and economic growth The Debate However, as efficiency and productivity increase, the linear links with GDP may be reduced as there is no a priori reason why transport demand should rise with GDP Production and distribution processes (and individual passenger travel) could become either less transport intensive or more transport intensive. Conversely, if prices rise substantially or there is a concerted international action, then again the simple linear relationship may be broken This has already happened with energy consumption. Price rise and greater efficiency in production and consumption have resulted in growth levels far less than those in GDP Transport investment and economic growth The Debate These trends and relationships are important, but they can change Sustainable growth and development: Maintaining growth in the national and international economies, with the use of less resources, particularly non-renewable resources -> WE WOULD EXPECT A CONTINUED GROWTH IN GDP BUT WITH FEWER RESOURCES USED IN TRANSPORT It does not mean that there will be less transport, but that we have to become more efficient in our use of resources In addition: the current technological revolution in information technology and communications (ITC) may also weaken the links between transport growth and economic growth Transport investment and economic growth The Debate Apart from national arguments, there are arguments for investment in transport infrastructure at urban and regional level (regional development policies in the EU) EU: Expanded transport infrastructure will provide overall economic development in the longer term There are unresolved questions: It is not clear whether such a policy actually provides the greatest benefit to the peripheral regions Little empirical evidence is available on whether infrastructure investment in the periphery actually strengthens the centre, as it extends market area and permits migration of labour to the centre where opportunities are perceived to be greater It is unclear whether the local economy in the peripheral region benefits over the long term Transport investment and economic growth The Debate If competitiveness of the EU or the individual country in world markets is discussed, then infrastructure investment should be in those locations where the greatest return is expected This is likely to be in the regions with the stronger economic conditions, or where particular circumstances are likely to result in high returns (particular skills or natural resources) Is high quality transport infrastructure a necessary condition to bring economic growth in emerging or depressed regions? Experience, arguments and reviews have all suggested that road building is not the key determinant for growth „Greenfield” road construction as creating basic network is initial term for stimulating „greenfield” economic investments – see case of emerging regions (early stage development) The previous statement is not true for describing link between „brownfield” road development and economic growth - see example of a depressed region -> Is high quality transport infrastructure a necessary condition to bring economic growth in emerging or depressed regions? The example of Liverpool, UK Regeneration of local economy and restructuring, retraining, new industries were needed rather than new roads Roads were originally justified on the basis of the expected growth in traffic and the necessity to accommodate and direct this growth. Later, the same roads were being defended as a means to regenerate the local economy The debate: a historical perspective The debate is not new Ever since roads and railways were built, one of the main arguments has been the impact that the infrastructure would have on production costs Initially: few links in the network - the impacts could be clearly identified Transport investment would help open up new areas for agricultural production, create new markets for goods and link in isolated areas with the main towns and cities This development argument has been applied more recently to countries passing through the development stage History of spatial modeling for economy The early days - 1800-1970: location theory The 1970s and 1980s: urban and regional modeling Early 1990s: macroeconomic approaches Late 1990s: general equilibrium (GE) models and spatial models From 2000s: new economic geography (NEG) approaches The early days 1800-1970: Location theory Early studies by economists opened up a debate as to whether a reduction in transport costs brought new areas and products into the market UK: Rostow in 1960 argued that this was the case. Transport investment contributes to a major new export sector and was instrumental in the development of the modern coal, iron and engineering industries. Mitchell (1964) concluded that these necessary conditions were already met in the UK before the railways were built. In the UK the railways had been completed since 1852 and did not have a great immediate effect on the economy Substantial direct effects in the construction phase The Dutch canal network The impact of railroad development on the American economy Studies with limitations but formed the basis of much current thinking The 1970s and 1980s: urban and regional modelling Development of more sophisticated models for land use and transport analysis (uran and regional scales) Addition of more complex social structures for households, information on land availability and housing stock and more complex transport costs (e.g generalised costs of travel) Urban models: housing and jobs allocation within urban regions on the basis of their relative accessibility, land availability, income levels, population and employment Modelling the existing structure and predicting changes in locations given investment options (roads), new developments (housing) or changes in travel costs (pricing) The 1990s: macroeconomic approaches Examining the implications of not investing in the infrastructure Land development effects of roads: Under what conditions measurable effects can be identified? PPPs? Environmental arguments Competitiveness and lack of investment in infrastructure (e.g distribution) New traffic generated by new road construction (induced traffic) Late 1990s: general equilibrium (GE) models and spatial models GE models microeconomic agents’ behaviours (households, firms, …) Each agent makes decisions by explicit maximisation of its own criterion (utility, profit, …) We can compute the equilibrium and distribution of demand and supply on network level Spatial models deal with contribution of transport to economic development, forecasting maily: Demographic development Migration of population Residential location Transport flows From 2000s: new economic geography (NEG) approaches Backyard-capitalism-> local markets and trade between regions is essential part of economic system Consumers require nearby market, but morseling the distribution system leads to narrowing range of locally available products (optimum search between transport costs and consumer utilities) There is an equilibrium between location of firms, employees and markets – in terms of rental fees and transport costs Transport development needs are derived from above results The Debate: Productivity of Infrastructure Public capital has an impact on economic growth, on private capital and on labour productivity, but the magnitude and significance of these effects are not clear Key issue: The linkages of the above The Debate: Infrastructures for Development Debates for developed economies are less clear than those for the developing The World Bank: “Transport is central to development. Without physical access to jobs, health, education and other amenities, the quality of life suffers; without physical access to resources and markets, growth stagnates and poverty reduction cannot be sustained. Inappropriately designed transport strategies and programs, however, can result in networks and services that aggravate the condition of the poor, harm the environment, ignore the changing needs of users and exceed the capacity of public finances.” The Debate: Infrastructures for Development Macroeconomic studies by the World Bank show that investing in transport promotes growth by increasing the social return to private investment without crowding out other productive investment Microeconomic analysis confirms the high social value of transport: The estimated economic rate of return on transport projects at completion is 22%, half as the Bank average Open questions on transport infrastructure and regional development 1. 2. 3. 4. 5. Is the growth impact of any new transport link in developed countries likely to be significant? Are transport costs a small part of total production and labour costs? Are buoyant local economic conditions more important than transport infrastructure improvements in generating growth? Are the unique characteristics of the area and the spatial extent over which the growth impacts are to be felt considered? Can one generalise about the results from specific case studies? Open questions on transport infrastructure and regional development 6. 7. 8. 9. 10. What is the role of technological change in affecting the relationships between transport investment and economic growth? How slow, long term and complex are the adjustment and readjustment processes within the regional economy following a transport investment? Does a good transport infrastructure raise the image and the perceptions of an area, thereby attracting additional private investment? How can one assess the course of economic development in an area if the transport investment was not made? What is the role of expectations, regarding the impacts of investment, in achieving growth? Evaluating Transportation Alternatives The concept of an evaluation is simple, the process can be complex Example: improving safety at a railway grade crossing It may be based on citizen complaints about accidents or time delays at the crossing site Many ways to solve the problem. Each solution or alternative will result in a unique outcome in terms of project cost and results (install gates and flashing lights; construct a grade-separated overpass) Different solutions (cost and effectiveness) Evaluating Transportation Alternatives A transportation improvement is a mechanism for producing a result desired by society at a price Question: Will the benefits of the project be worth the cost? In some cases, the results may affect the users of the system, in others, those affected may include persons in the community who do not use the system Evaluating Transportation Alternatives Basic questions and issues to be considered before beginning an analysis to evaluate transportation alternatives These assist in determining the proper approach to be taken, what data are needed, what analytical techniques should be used Objectives of evaluation What information is needed for project selection? The objective of an evaluation is to furnish the appropriate information about the outcome of each alternative so that a selection can be made Different methods of evaluation can used, depending on the project, the use of the evaluation (public participation or not), the relative outcome expression (single number? Individual results for each criteria and each alternative?), or if post-facto evaluation is applied Identifying project stakeholders Who will use the information? A variety of groups can be affected by a transportation project System users Transportation management Labour Citizens in the community Business Local, regional and national administration Each of these groups will be concerned with something different The viewpoint that each represents will influence the evaluation process itself Selecting and Measuring Evaluation Criteria Goals and objectives of each transportation project: they are made operational as criteria The numerical or relative results of each criteria are called measures of effectiveness Railway grade crossing example: If the goal is to reduce accidents, the criteria can be measured as the number of accidents expected to occur for each of the alternatives considered. If another goal is to reduce waiting time, the criteria could be the number of minutes per vehicle consumed at the grade crossing. Non-quantifiable criteria can also be used and expressed in a relative scale (high, medium, low) Selecting and Measuring Evaluation Criteria It is important that the criteria are related as closely as possible to the stated objective If the objective of our course is to learn “Transport Infrastructure and Regional Development’, then a relevant criterion to measure results is exam grades, or the performance of a student in preparing and presenting a topic. A less relevant criterion is the number of class lectures attended. Both are measures of class performance, but the first is more relevant in measuring how well one achieved the stated objective Other attributes of criteria apart from relevance: Should be easy to measure Must be sensitive to changes made in each alternative The number of criteria should be limited to those that will be the most helpful in reaching a decision – too much information can be confusing, can create uncertainty Examples of criteria used in transportation evaluation Capital costs Construction Expropriation costs Vehicles Maintenance costs Facility operating costs Travel time cost Total hours and cost of system travel Average door-to-door speed Distribution of door-to-door speeds Vehicle operating costs Accident costs Measures of effectiveness How are measures of effectiveness used in the evaluation process? First approach: Convert each measure to a common unit, then for each alternative compute the sum of all measures Common unit = money (see: Cost-Benefit Analysis) If all relevant criteria are transformed into money, a comparison of each alternative from an economic point of view can be made Railway crossing example: If the cost of an accident is known and the value of travel time can be determined, then it would be possible to compute a single number that would represent the total cost involved for each alternative, since construction, maintenance and operating costs are known on money and the accident and time costs can be computed using conversion rates Measures of effectiveness Second approach: Convert each measure of effectiveness to a numerical score Example: if a project alternative does well in one criterion, it is given a high score; if it does poorly in another criterion, it is given a low score A single number can be calculated that represents the weighted average score of all measures of effectiveness that were considered (see: Multi-Criteria Analysis) Similar approach to calculating grades in a course In this case, measures of effectiveness should be independent of each other; if correlated, then adding up the weighted scores will bias the outcome Third approach: To identify the measures of effectiveness for each alternative in a matrix form, with no attempt to combine them How do we build “value for money” transport projects? The work includes forecasting growth in road traffic and other transport use (transportation models), assessing the impacts of transport and other policies on these forecasts, developing and supporting appropriate methods for predicting the transport and economic impacts of road and other transport improvements, and setting the framework for assessing whether transport schemes are value for money
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