Operational efficiency and energy saving analysis of urban transportation: A case study

ÇAĞMAN S., Taser S.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, vol.44, no.2, pp.4442-4457, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 2
  • Publication Date: 2022
  • Doi Number: 10.1080/15567036.2022.2077479
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus, Academic Search Premier, ABI/INFORM, Aerospace Database, Applied Science & Technology Source, CAB Abstracts, Communication Abstracts, Compendex, Computer & Applied Sciences, Environment Index, Greenfile, INSPEC, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.4442-4457
  • Keywords: Public transport, energy saving, light rail system, data envelopment analysis, city transportation, PUBLIC TRANSPORT, PERFORMANCE EVALUATION, TECHNICAL EFFICIENCY, SYSTEMS, SUSTAINABILITY, SECTOR, MODEL, COST
  • Kocaeli University Affiliated: Yes


Ulasimpark debuted Akcaray in Kocaeli, the first public transit light rail line in the city, in 2017. In this study, the operational efficiency and service-level performance of 12 Akcaray trams and four bus lines that intersect with the Akcaray route are evaluated using Data Envelopment Analysis to determine the efficiencies of various decision-making units. While Akcaray's performance efficiency score is 100% for all 12 trams, it is 45% for the bus line 1, 76% for the bus line 2, 0.61% for the bus line 3, and 1 hundred percent for the bus line 4. Out of the four buses, only one has a 100% efficiency rating. Transportation expenses, such as energy/fuel, maintenance, accident, and environmental costs, are also assessed and compared separately for both modes of transportation. This study aimed to find a means to calculate a legitimate efficiency measure for Akcaray and bus lines, and it was determined that Akcaray could save USD 1,885,986 per year on Kocaeli public transit. It also saves over 4 million cubic meters of compressed natural gas.