Arşiv ve Dokümantasyon Merkezi
Dijital Arşivi

Development of link-capacity functions for Istanbul freeways

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dc.contributor Graduate Program in Civil Engineering.
dc.contributor.advisor Ergün, Gökmen.
dc.contributor.author Gün, Furkan.
dc.date.accessioned 2023-03-16T10:49:50Z
dc.date.available 2023-03-16T10:49:50Z
dc.date.issued 2007.
dc.identifier.other CE 2007 G86
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/13845
dc.description.abstract The relationships between traffic flow and travel time are called link-capacity functions and are fundamental inputs for capacity restrained trip assignment methods. In order to estimate realistic results for travel demand, trip assignment is to be handled carefully and for this purpose link-capacity functions are necessary. Unfortunately, there is not an ultimate link-capacity function being valid for any road; instead there are many different types of functions with different parameters. These parameters show dependency to the links, vehicle and driver characteristics of that specific region. Istanbul, being the most crowded city of Turkey has its own specific parameters, too. This study aimed to calibrate suitable link-capacity functions and the estimates of their parameters for Istanbul. This was achieved by first investigating the basic relationships between traffic stream parameters and after finding out the characteristic inputs for the functions, such as free flow speed, and capacity. The two dimensional traditional approach to the relationships between these traffic parameters and the estimation of them is followed by a three dimensional newer approach to a small part of the existing data in order to see its relevance, experimentally. The results of this study may lead the transportation planners of Istanbul to convenient forecast analysis.
dc.format.extent 30cm.
dc.publisher Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007.
dc.relation Includes appendices.
dc.relation Includes appendices.
dc.subject.lcsh Highway capacity.
dc.subject.lcsh Traffic surveys.
dc.title Development of link-capacity functions for Istanbul freeways
dc.format.pages xv, 70 leaves;


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