APPLICATION OF LAND USE AND TRANSPORTATION INTERACTION (LUTI) MODEL FOR TRANSIT-ORIENTED DEVELOPMENT (TOD): THE CASE STUDY OF CITY AND ACTIVITY CENTER DEVELOPMENT ALONG THE MRT PINK LINE CORRIDOR, BANGKOK METROPOLITAN REGION

Sikkawat  Sukhumaumnuychai

Authors

Sikkawat Sukhumaumnuychai Master Student, The Cluster of Logistics and Rail Engineering, Faculty of Engineering, Mahidol University, 25/25 Phuttamonthon 4 Rd, Salaya, Phuttamonthon, Nakhon Pathom 73170 Thailand

Keywords:

Transit-Oriented Development (TOD), Land Use and Transportation Interaction (LUTI), TRANUS, MRT Pink Line, Floor Area Ratio, Bangkok Metropolitan Region

Abstract

Bangkok Metropolitan Region continues to face severe traffic congestion and high dependence on private vehicles, while major investment in rail transit has been promoted as a mechanism to support more sustainable urban development. This paper applies a Land Use and Transportation Interaction (LUTI) model using TRANUS to assess Transit-Oriented Development (TOD) along the MRT Pink Line corridor, focusing on two contrasting activity areas: Chaeng Watthana Government Center (CWG) and Muang Thong Thani (MTT). The study's contribution is a corridor-scale framework that translates TOD concepts into model outputs, including density, diversity, accessibility, consumer surplus, land consumption, and travel demand. The model was developed using population, employment, land use, land price, traffic network, public transport, travel behavior, and traffic count data, and was validated against survey observations in the base year. Scenario testing indicates that the MRT Pink Line, feeder services, and pedestrian improvements reduce private-car trips from 466,611 trips/day in BAU2030 to 396,799 trips/day in Scenario A and 390,175 trips/day in Scenario B, representing reductions of 15.0% and 16.4%, respectively. Walking trips increase by 43.2%-47.3%, and bus trips increase by 25.1%-59.2%, indicating improved access to public transport. However, transport infrastructure alone generates only limited land-use restructuring. When the Floor Area Ratio (FAR) policy is added in TOD target areas, residential floor area increases from 1.42 to 2.11 million square meters in MTT and from 0.19 to 0.56 million square meters in CWG. The findings show that TOD implementation requires integrated rail infrastructure, feeder systems, pedestrian facilities, mixed-use zoning, and FAR-based planning controls.

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