Assessment of the Effects of Improving the Madrid Inner Ring Road to a More Balanced and Sustainable Metropolitan Mobility



Assessment of the Effects of Improving the Madrid Inner Ring Road to a More Balanced and Sustainable Metropolitan Mobility

Authors

A Monzon, TRANSyT, Universidad Politecnica de Madrid, ES; L A Vega, Universidad Pedagogica Tecnologica de Tunha-Colombia, CO; A M Pardeiro, TRANSyT, Universidad Politecnica de Madrid, ES

Description

Abstract

The city of Madrid is suffering a rapid suburbanisation process where population and jobs are moving out of the central city. This process produces an imbalanced mobility patterns and car more car dependency. Car pressure on central areas is increasing and the negative environmental effects too.

A number of actions have been envisaged to reverse that situation that constitutes a whole strategy to keep mobility standards and to preserve negative effects. This strategy tries to maintain the social and economic vitality of the urban centre, in a sustainable frame in order to reduce externalidades and to promote the quality of life of its inhabitants and visitors

The strategy comprises actions both in favouring public transport and conveying car traffic in dedicated arteries. It is targeted to reduce problems and at the same time to keep Madrid as a competitive city for people and business in concurrence with those urban developments located in the Metropolitan ring. The main targets are: reduce the pressure of the automobile on the CBD; facilitate PT mobility; recuperate the share of walking trips achieved 15 years ago; to avoid through traffic in local streets; to manage traffic to reduce externalities; to reduce severance and environmental degradation of green areas, particularly in the area of Manzanares River.

The policy actions to achieve those targets are a combination of hard and soft measures that can be summarized as follows:

? To built about 110 km of tramways and metro lines to compete with cars in radial trips
? To built a by pass line to allow commuter trains to reach 3 central city stations
? To eliminate stretches where accidents are concentrated by new alignments
? Homogenise road conditions and control systems to minimise congestion
? To settle an strict control system in main arteries
? To control curb-parking in all CBD
? To convert in pedestrians areas the main historical zones
? To segregate 21 km of bus lanes in the main itineraries
? To tunnel urban roads where environmental pressure is high and borough accessibility low

This paper focuses first on the description of those policy measures and how they have been designed to get better results. Then it describes the assessment carried out by the authors to evaluate the effects of the improvement of the inner ring road ?currently under construction? in the frame of the long term sustainable strategy described. It highlight medium and long term effects on mobility patterns in Madrid and the reduction of externalities in all Madrid Region. It includes a CBA analysis to calculate time savings and operating costs in the different scenarios. The methodology also pays special attention to the reduction of accidents, the connectivity improvements, the reduction of noise and pollutant emissions and the recuperation of green areas.

This evaluation has been based on a big modelling exercise, covering from the macro level to plan the new stretches to the micro simulation to design intersections and to improve the coordination with public transport services. It has been served to decide the actions already taken and their characteristics.

The evaluation results show that the strategy of Madrid could produce a sustainable improvement of mobility standards, more equity in using urban areas, and to reducing car use in dense inner zones. The overall socio-economic assessment indicate that the action programme will be clearly beneficial although it requires a big amount of investments.

Publisher

Association for European Transport