Maximum Adt Sustained by Two-Lane Roads in Madrid Region

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  • Topic: Madrid, Categoría Preferente de Aficionados de la Comunidad de Madrid, Community of Madrid
  • Pages : 30 (3509 words )
  • Download(s) : 17
  • Published : February 9, 2013
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Maximum ADT sustained by two lane roads in the Madrid
Region in Spain

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Manuel G. Romana
Universidad Politécnica de Madrid
ETSI Caminos, Canales y Puertos
C/ Profesor Aranguren s/n
28040 Madrid (Spain)
Phone: (+34) 913366765
e-mail: mromana@caminos.upm.esMadrid Polytechnic
David Hernando
Universidad Politécnica de Madrid
Department of Civil Engineering: Transport
ETSI Caminos, Canales y Puertos
C/ Profesor Aranguren s/n
28040 Madrid (Spain)
e-mail: david.hernando@upm.es
Miguen Núñez
Comunidad de Madrid
Dirección General de Carreteras
C/ Orense 60
28020 Madrid (Spain)
e-mail: miguel.nunez@madrid.org

Word count: 2914 (not including figures and tables) + (7 figures x 250) = 4664 < 7500

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ABSTRACT
At the time of drawing the next Road Master Plan for the Madrid Region the question of what value should be considered for the maximum ADT for a two-lane road came up. The conventional wisdom value was 10000 veh/day, but this value is clearly to low for Spanish conditions. This text summarizes the work made to answer this question, based on considering past policy of the Madrid Region Road Authority (Dirección General de Carreteras de la Comunidad de Madrid), other values reported in the literature, and examining the ADTs of all two-lane roads that were upgraded since 1998 (seven) and all two-lane roads with reported ADTs above 10000 between 1998 and 2008. In particular, values contained in FDOT Service Volume Tables and the proposed service volume tables that will be part of the 2010 HCM

The results indicate that the maximum observed values fit fairly well with the service volume tables, These results offer guidance as to what value could be considered for future planning applications, including impact traffic studies and local and regional planning. Key words: capacity; maximum ADT, two-lane highways, planning

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INTRODUCTION
While developing the next Road Master Plan for the Madrid Region in Spain, the question came up as to what value should be adopted as the maximum ADT for a two-lane road. Should this value be based on capacity, level of service, or some other source? The Madrid Region comprises the city itself and the Madrid province, which has an area of approximately 8,000 km² (1.6% of all Spanish territory). Madrid is the capital and largest city of Spain.[4] The population of the city is roughly 3.3 million (as of December 2009); the entire population of the region is a little over 6 million. It is the third-most populous municipality in the European Union after Greater London and Berlin, and its metropolitan area is the third-most populous in the European Union after Paris and London. Madrid is a regional autonomous government since 1983, when the decentralization of the state first occurred. Conventional wisdom suggested that the maximum ADT for a two-lane road was 10000 veh/day. The first Master Road Pan for Madrid (1983) had adopted that figure. However, when looking at the real ADTs for existing roads, higher values were found, and the team in charge was uncomfortable with this discrepancy. Subsequent plans adopted higher values, but never justifying their decision. So, what is the maximum value of ADT that a two-lane road can sustain?

In doing so, it must be considered that some time is needed to built an improved facility according to reasonable documented procedures. In Madrid, this period is 48 moths (4 years), broken down as follows:

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 Drawing up the internal proposal (memoria resumen) (2-4 months),

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 Consultation with public bodies (variable)

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 Detailed Planning (estudio informativo) (6 months),

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