Public agencies rely on two key modes to procure goods and services: auctions and direct negotiations. The relative advantages of these two modes are still imperfectly understood. This paper therefore studies public procurement of regional passenger railway services in Germany, where regional...

At present, the structural reform of the Italian local public transport is aimed at a potential re-launching of the sector which should make the engaged resources more productive, and, at the same time, at the achievement of more general objectives linked to sustainable mobility. In this light,...

Air pollution concentrations have been rapidly increasing in the major urban areas of Brazil caused mainly by the increasing use of vehicles. In the presence of this negative externality, environmental regulation is required. Car emission control policies in Brazil have relied basically on...

We analyse congestion pricing in a road and rail network with heterogeneous users. On the road there is bottleneck congestion. In the train there is crowding congestion. We separately analyse "proportional heterogeneity" that varies the values of time and schedule delay scalarly in fixed...

Many studies have regarded fare and on-time performances as directly factors affecting ridership of Intercity Passenger Train. Yet these relationships may become complicated when considering effect from alternative trains running in the same routes and thus make forecasting result spurious. This...

Transportation analysts and the public decision-makers they support are confronted with a broad range of analytical tools for estimating the economic impacts of improvements to transportation networks. Many of the available models operate at different scales and have distinctly different...

A common way to determine values of travel time and schedule delay is to estimate departure time choice models, using stated preference (SP) or revealed preference (RP) data. The latter are used less frequently, mainly because of the di fficulties to collect the data required for the model...

This Discussion Paper, originally prepared for the NSW Freight Advisory Council, starts from the position that freight logistics must now be seen as part of a global supply chain network. Freight networks consist of multiple visible and invisible economic, social and political connections over...

The authors apply a computable general equilibrium (CGE) modeling framework to carry out a two-country comparison for Austria and Germany assessing the impact of road charging (RC). The pricing policy measure is introduced for the private motorized transport mode and applies to the overall road...