The purpose of this policy note is to present reform options on cabotage liberalization. The goal of cabotage liberalization is to help i) foster more competition in the domestic shipping industry, ii) reduce shipping cost, and iii) improve efficiency, maritime services, and safety standards. These, together with complementary reforms in domestic shipping and ports, can help enhance consumer and producer welfare through lower consumer prices, higher household real income, timely delivery of goods, and ultimately, job creation and poverty reduction through greater market access. This policy note on cabotage is organized as follows. Part one provides an overview of the domestic shipping industry and discusses the key issues that it faces. Part two discusses the underlying reasons for the industry’s inefficiency. Part three discusses the concept of cabotage, the cost and benefit of cabotage liberalization, and the cabotage regimes of the Philippines and of selected countries. Part four closes with a discussion of reform options.
Abstract
The purpose of this policy note is to present reform options on cabotage liberalization. The goal of cabotage liberalization is to help i) foster more competition in the domestic shipping industry, ii) reduce shipping cost, and iii) [...]
Carbon footprint assessment due to airport operations is often required by environmental regulations. Aircraft contribute to local air pollution during the Landing and Take Off cycle. A big portion of the time aircraft spend on the ground is taken by taxi operations. Taxi times also increase at higher rates than traffic demand because of congestion at airports. Several measures are explored in the literature regarding the mitigation of taxi related emissions. These measures are often assessed by means of analytical approaches. In this article, the authors introduce a new micro simulation approach to assess aircraft ground movements with the aim of providing a more realistic estimation of taxi times. The approach is based on the definition of a discrete event model using a generic simulation software, AnyLogic 7. The new model is then used to assess the potential benefits and impacts deriving from the introduction of an environmental friendly taxi procedure at Lisbon International Airport. The simulated procedure envisages the utilization of TaxiBot, a semi-robotic towbarless tractor suitable for dispatch towing at medium to large airports. Results prove the alternative measure would potentially lead to environmental benefits in terms of fuel saved and emissions reduction. Considering an average day, both airports and airlines would gain in terms of, respectively, emitted pollutants and operational costs. Starting from these observations, possibilities for further research are explored.
Abstract
Carbon footprint assessment due to airport operations is often required by environmental regulations. Aircraft contribute to local air pollution during the Landing and Take Off cycle. A big portion of the time aircraft spend on the ground is taken by taxi operations. Taxi times [...]