Date of Completion


Embargo Period



Norman W. Garrick; Carol M. Atkinson-Palombo, Karthik C. Konduri, Amy C. Burnicki

Field of Study

Civil Engineering


Master of Science

Open Access

Open Access


Ride source is among the fastest growing services in the transportation sector. While the service initially served a niche market, ridership has boomed in recent years. Daily ride source pickups in New York City have increased from about 60,400 pickups in January 2015 to about 550,000 pickups in December 2017, an 810% increase. Even though ride source broke into the transportation landscape almost seven years ago, research studying its effects has been stunted by the limited open source data made available by TNCs. In order to help city officials make smart policy decisions regarding ride source, transportation experts must continue to advance the literature on ride source with the data available. This study aims to supplement existing research by analyzing temporal patterns of for-hire services in a range of transportation, land use and social contexts within New York City in order to understand how ride source was initially used and how it is used currently. We analyzed ride source, yellow taxi and green taxi temporal patterns by day of week and time of day for 2014 and 2017 and characterize these patterns in distinct neighborhood groupings. Using a set of demographic, social, economic, transportation and land use variables, A K-means Clustering Method will be used to identify similar taxi zones in order to define a set number of unique neighborhood clusters. From this methodology, two studies were developed.

Our first study finds that many of the outer borough neighborhoods in which ride sourcing trips originated are home to minority, relatively low-income populations, who are comparatively poorly-served by public transit, yet have low car ownership rates. It is possible that these trips in the outer boroughs are being taken by local residents to fill gaps in mobility services, given that they are less well-served by public transportation and other for-hire vehicles such as yellow taxis. Our second study finds that temporal trends in ride source and for-hire vehicle use have changed between 2014 and 2017, indicating that these services are being used differently now than at the beginning of the study period. Within Manhattan, ride source growth has mainly contributed to the increase late night trips. Outside of Manhattan all periods of the day have experienced a surge in pickups with the largest increase coming at night.

Major Advisor

Norman W. Garrick