15 citations · 18 across the 6 of their papers we have counts for
6 papers
A Tool for Reconstructing Transit Vehicle Trajectories: A Case Study at IndyGo
Ben O'Brien, Lewis J. Lehe
Automatic vehicle location (AVL) data produced by transit vehicles is invaluable in performance studies, but turning raw AVL points into a detailed view of vehicle stop-and-gos is…
A Pipeline and NIR-Enhanced Dataset for Parking Lot Segmentation
Shirin Qiam, Saipraneeth Devunuri, Lewis J. Lehe
Discussions of minimum parking requirement policies often include maps of parking lots, which are time consuming to construct manually. Open source datasets for such parking lots a…
TransitGPT: A Generative AI-based framework for interacting with GTFS data using Large Language Models
Saipraneeth Devunuri, Lewis Lehe
This paper introduces a framework that leverages Large Language Models (LLMs) to answer natural language queries about General Transit Feed Specification (GTFS) data. The framework…
ChatGPT for GTFS: Benchmarking LLMs on GTFS Understanding and Retrieval
Saipraneeth Devunuri, Shirin Qiam, Lewis Lehe
The General Transit Feed Specification (GTFS) standard for publishing transit data is ubiquitous. GTFS being tabular data, with information spread across different files, necessita…
Scale Effects in Ridesplitting: A Case Study of the City of Chicago
Hao Liu, Saipraneeth Devunuri, Lewis Lehe +1
Ridesplitting -- a type of ride-hailing in which riders share vehicles with other riders -- has become a common travel mode in some major cities. This type of shared ride option is…
Bus Stop Spacings Statistics: Theory and Evidence
Saipraneeth Devunuri, Shirin Qiam, Lewis Lehe +2
Transit agencies have been removing a large number of bus stops, but discussions around the bus stop spacings exhibit a lack of clarity and data for comparison. This paper proposes…