Regional aspects of public transport mobility: Izmir urban region case

Şenbil, Metin
Yetişkul Şenbil, Emine
Özuysal, Mustafa
Accessibility can be defined as easiness in reaching locations by means of transportation and its infrastructure. It is a physical characteristic revealing (relative) attractiveness of a location. Mobility, on the other hand, is a real-life counterpart of potentials produced by accessibility, with spatial behavioural dimensions considering socio-economic, cultural and demographic characteristics. For example, different aspects of trip-making behaviour is an important aspect of mobility. This study deals with public transport mobility in Izmir urban region. For the mobility of a public transport system, one has to consider the individual characteristics of a passenger and land-use characteristics of a station or stop. In this study, we try to derive the geography and regional properties of public transport mobility. To this end, one-week electronic card usage data (November 5-11, 2018) has been used for different aspects of mobility. Electronic card readings sum up to 1.7 million times on average during a weekday, which decreases 17% and 49% on Saturdays and Sundays, respectively. Electronic card data stores station or stop where the card is validated, day, time of use, and money charged. Additionally, electronic card data provide the destination station for a one-way trip on a regional suburban line which is known as IZBAN (short for Izmir Suburban Rail System) as the cards are revalidated for fare reimbursement. Similar to other metropolitan areas in Turkey, the public transport system in Izmir has been transforming from rubber-tired systems to rail-dominated public transit systems, which also have regional aspects as well as regional repercussions. Resulting from this transformation, rail system stations have become centres of public transport mobility. In other words, the whole public transport system has been juxtaposed upon the rail system. Accordingly, this study attempts to delineate regional repercussions of the rail system by concentrating on its land-use aspects. Used by thousands of passengers throughout the day, rail stations are evaluated with respect to two views points, station as an areal interaction and station as a node. Areal interaction leads to the station type derived from land use around the station. Accordingly, areal interaction sparks a station-based process of turning space into place. Node property, on the other hand, refers to the directional changes between origin and destination of a trip, i.e., transfer between different rail transit lines. Spatial inferences are also made from these features of the public transport system, such as the number of passengers at stations and stops, the distribution of passengers by hours. Besides, Sub-regions, routes and sections are determined within the city-region and metropolitan area. For the bus network, inferences on land use have been derived from peak hour ratios of electronic card readings. Using mobility data, both rail and bus networks can be merged into integrated service areas. The contribution was made to the development of transportation policies through the findings of public transportation mobility in the Izmir urban region. Three sub-regions are differentiated according to land uses 1) Residential sub -region, 2) Non-residential sub-region, and 3) Mixed land-use sub-region. Each sub-region is associated with a distinct daily passenger pattern according to electronic card data.


Assessment of scenarios for sustainable transportation at METU Campus
Altıntaşı, Oruç; Tüydeş Yaman, Hediye; Department of Civil Engineering (2013)
Sustainable transportation aims encouragement of non-motorized (pedestrian and bicyclist) and shared-ride transportation modes instead of car-dependent travels. This is important for university campuses, as they have better chance to implement such policies in a rather controlled traffic network, and can set an example to other communities. Most of sustainable campus transportation programs boil down to reduction of car-based emission cost of campus mobility, which is always the first step in developing mor...
Transformative Urban Railway: Ankara Commuter Line and Lost Landscape
Baş Bütüner, Funda; Aral, Hacer Ela (2017-09-27)
Being major transportation infrastructure of the 19th and early 20th centuries, the impacts of railways on cities have highly directed urban studies,. deforming material edge of cities, encouraging urban extension, forming new territories, and speeding up urban development. However, in recent decades, with newly emerging landscape infrastructure practice, a new idea for a more integrated infrastructure and landscape system has started to be formulated. Railway strips, occurring as territories where solid-vo...
Urban compactness : a study of Ankara urban form
Çalışkan, Olgu; Günay, Baykan; Urban Design in City and Regional Planning Department (2003)
Sustainable urban development is mentioned together with the concept of urban form in contemporary planning literature. The main reason behind this is a need for determining an ideal physical development scheme and its main principles of urban future in a broad term. Besides, the operational side of urban planning requires a concrete set of design codes in order to transform urban space in both macro and mezzo scale. At this point, the concept of urban compactness and the idea of Compact City have come into...
GIS-based stochastic modeling of physical accessibility using GPS-based floating car data and Monte Carlo simulation
Ertugay, Kivanc; Duzgun, Sebnem (Informa UK Limited, 2011-01-01)
The term physical accessibility has long been used by geographers, economists, and urban planners and reflects the relative ease of access to/from several urban/rural services by considering the traveling costs. Numerous accessibility measures, ranging from simple to sophisticated, can be observed in the geographical information systems (GIS)-based accessibility modeling literature. However, these measures are generally calculated from a constant catchment boundary (a most likely or average catchment bounda...
Integration of public transport services: the case of Istanbul
Gür, Aslıhan; Babalık, Ela; Department of City and Regional Planning (2019)
One of the most important policy and action areas in urban transport planning is the improvement of public transport with a view to increase its usage. Public transport is the most effective way of meeting increasing mobility needs in urban areas. It can provide long-distance journeys that may be difficult to travel via walking and biking. In the face of increasing car usage, it also ensures the most efficient use of space (i.e. transport infrastructure) and hence can help relieve congestion, which is a con...
Citation Formats
M. Şenbil, E. Yetişkul Şenbil, and M. Özuysal, “Regional aspects of public transport mobility: Izmir urban region case,” MEGARON, vol. 17, no. 1, pp. 136–150, 2022, Accessed: 00, 2022. [Online]. Available: