TRB Pubsindex
Text Size:

Title:

An empirical study of the impact of light rail and TNCs on bus ridership in Seattle between 2015 and 2017

Accession Number:

01764156

Record Type:

Component

Abstract:

Unlike many other metros, the transit ridership in Seattle has been increasing, even after the arrival of transportation network companies (TNCs), which are often blamed for crushing the performance of transit. Data shows the number of Sound Transit Link Light Rail (STLLR) users is soaring, while King County Metro (KCM) bus is struggling. This paper uses two approaches to analyze the effects of TNCs and STLLR on KCM bus. The results from the spatial lagged/error fixed effects models with maximum likelihood (ML) estimation indicate that STLLR is a substitute to KCM bus, with the fact that KCM has adapted to new situations by changing routes and frequencies. Uber’s effect on the total demand for KCM bus is not significant, but it becomes negative if the bus ridership is measured by boarding per trip. Presented in the hot spot analyses using Getis-Ord Gi*, the hot/cold spots of the changes in KCM bus ridership and Uber demand are spatially mutually exclusive. Places where bus ridership increased rapidly – particularly those served by BRT (bus rapid transit)-like routes – tend to see a below-average growth in Uber trips. Discussed at the end of the paper, transportation service providers should coordinate with each other and identify their strengths.

Supplemental Notes:

This paper was sponsored by TRB committee AED60 Standing Committee on Statistical Methods.

Report/Paper Numbers:

TRBAM-21-01821

Language:

English

Corporate Authors:

Transportation Research Board

Authors:

Yang, Hongyi

Pagination:

18p

Publication Date:

2021

Conference:

Transportation Research Board 100th Annual Meeting

Location: Washington DC, United States
Date: 2021-1-5 to 2021-1-29
Sponsors: Transportation Research Board; Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Maps; References; Tables

Geographic Terms:

Subject Areas:

Operations and Traffic Management; Passenger Transportation; Public Transportation

Source Data:

Transportation Research Board Annual Meeting 2021 Paper #TRBAM-21-01821

Files:

TRIS, TRB, ATRI

Created Date:

Dec 23 2020 11:21AM