The relentless growth in Mexico City’s aviation traffic has inevitably strained capacity development of its airport, raising thedilemma between the possible solutions. In the present study, Mexico’s Multi-Airport System is subjected to analysis by meansof multi-model simulation, focusing on the capacity-demand problem of the system. The methodology combines phases ofmodelling, data collection, simulation, experimental design, and analysis. Drawing a distinction from previous works involvingtwo-airport systems. It also explores the challenges raised by the Covid-19 pandemic in Mexico City airport operations, with adiscrete-event simulation model of a multi-airport system composed by three airports (MEX, TLC, and the new airport NLU).The study is including the latest data of flights, infrastructures, and layout collected in 2021. Therefore, the paper aims toanswer to the question of whether the system will be able to cope with the expected demand in a short-, medium-, and longtermby simulating three future scenarios based on aviation forecasts. The study reveals potential limitations of the system astime evolves and the feasibility of a joint operation to absorb the demand in such a big region like Mexico City.
While the Municipality of Amsterdam wants to expand the electric vehicle public charging infrastructure to reach carbon-neutral objectives, the Distribution System Operator cannot allow new charging stations where low-voltage transformers are reaching their maximum capacity. To solve this situation, a smart charging project called Flexpower is being tested in some districts. Charging power is limited during peak times to avoid grid congestion and, therefore, enable the expansion of charging infrastructure while deferring grid investments. This work simulates the implementation of the Flexpower strategy with high penetration of electric vehicles, considering dynamic and local power limits, to assess the impact on both the satisfaction of electric vehicle users and the business model of the Charging Point Operator. A stochastic approach, based on Gaussian Mixture Models, has been used to model different profiles of electric vehicle users using data from the Amsterdam public electric vehicle charging infrastructure. Several key performance indicators have been defined to assess the impact of such charging limitations on the different stakeholders. The results show that, while Amsterdam’s existing public charging infrastructure can host just twice the current electric vehicle demand, the application of Flexpower will enable the growth in charging stations without requiring grid upgrades. Even with 7 times more charging sessions, Flexpower could provide a power peak reduction of 57% while supplying 98% of the total energy required by electric vehicle users.
Tourism has been a growing industry in Europe in the last decades till 2020. Numerous cities were suffering from too many visitors what resulted in problems regarding support (of inhabitants) and carrying capacity of the destination. Then COVID-19 changed the world and tourism collapsed. Now, two years after the pandemic, cities and regions need to develop new strategies to rebuild tourism. Cities where there is overtourism are facing an extra challenge: to find a good balance between visitors, communities and environment. Six cities and regions (Amsterdam (NL), Krakow (PL), Tallinn (EST), Andalucía/Sevilla (ES), Rome (IT) and Brasov (RO)) that (regularly) experience over-tourism have joined forces how to develop new policy strategies to better distribute tourism in time and space. The objective of the project is to improve the performance of the local-regional strategies and policies by strengthening their contribution to find balance in tourism with a focus on spreading tourism over a wider area, making use of the opportunities offered by the city and region. The project aims to strengthen the positive effects of tourism and to reduce the negative effects of tourism. Collaborative partnersAmsterdam Municipality, Metropolitan City of Rome, Brasov Metropolitan Agency for Sustainable Development, Ministry of Tourism Regeneration Justice and Local Administration Regional Government of Andalucía, Estonian Chamber of Commerce and Industry, Municipality of Krakow.