PROGRESS IN GEOGRAPHY ›› 2015, Vol. 34 ›› Issue (4): 418-429.doi: 10.11820/dlkxjz.2015.04.003

• Special Column: Big Data and Smart City • Previous Articles     Next Articles

Aaccessibility and CO2 emissions from travel of smart transportation: theory and empirical studies

Xiaoshu CAO1,2(), Wenyue YANG1, Xiaoyan HUANG2   

  1. 1. School of Geography Science and Planning, Sun Yat-Sen University, Guangzhou 510275, China
    2. Institute of Transport Geography and Spatial Planning, Shaanxi Normal University, Xi'an 710119, China
  • Online:2015-04-10 Published:2015-04-10


The development of information and communication technologies (ICT) is promoting the construction of smart city, influencing urban transport and residents travel. Urban transport and residents travel are interdependent. Urban transport provides infrastructure services for residents travel, whereas the latter facilitates the development of urban transport through its feedbacks. Relative to urban transport, residents travel is subjective choices of individuals. Smart transportation and travel will improve accessibility, which includes place-based accessibility and individual accessibility. On the one hand, the improvement of place-based accessibility may change urban traffic environment. On the other hand, the improvement of individual-based accessibility may alter residents travel demand. These may change urban land use that in turn would have an impact on urban traffic environment and residents travel demand. Due to the complex relations of smart transport, accessibility, and travel and its related emissions, whether improved accessibility of smart transportation would increase or decrease CO2 emissions from travel is hard to determine. A critical issue for smart transportation in China is to ease traffic congestion and ensure the effective operation of urban transport system, in the meantime, to enhance the efficiency of travel and reduce CO2 emissions through improving accessibility. Therefore, this article proposes a theoretical framework for the study of accessibility and CO2 emissions from travel of smart transportation, and presents some empirical studies by taking the city of Guangzhou as a case, in order to provide a reference for future research.

Key words: smart transportation, information and communication technologies (ICT), accessibility, travel, CO2 emissions