Rerouting Solutions and Expensive Ride Analysis for King County Paratransit
Weekly time series of out-of-service buses
Project Lead: Dr. Anat Caspi, Taskar Center for Accessible Technology
DSSG Fellows: Rohan Aras, Frank Fineis, Kristen Garofali, Kivan Polimis
eScience Data Scientists: Joseph Hellerstein and Valentina Staneva
DREU Fellow: Emily Andrulis, Cornell College Weekly
The Paratransit team collaborated with King County Metro to improve operations of the Paratransit service, which is an on-demand public transportation program that provides door-to-door rides for people with limited ability who are unable to use traditional fixed route services. Currently, King County Metro paratransit trips cost approximately ten times as much as an equivalent trip using a fixed-route service, so the team concentrated their efforts on identifying costly routes, providing cost-driven recommendations for rescheduling broken buses, and better predicting service usage hours over quaterly periods. The team analyzed history data and observed rides whose cost per boarding was over $100, providing King County Metro with a method to update predictions of usage hours customized for each day of the week and a web app which provides cost comparison for the different options of handling a broken bus event: reschedule clients on an existing route, send a new bus, or serve them with a taxi. These tools aim to help the Paratransit operations better plan resources over longer periods of time and help dispatchers make informed decisions in case of emergency.
Click here to read the project’s full summary.