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Gregory D. Erhardt · Study
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Gregory D. Erhardt
17 works
· latest 2024
· 1 institutions
cluster: provisional
ORCID 0000-0001-8133-3381
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Citations
510
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Most cited in this library
Why has public transit ridership declined in the United States?
2022 · 133 citations
Understanding the Recent Transit Ridership Decline in Major US Cities: Service Cuts or Emerging Modes?
2019 · 126 citations
Why is traffic congestion getting worse? A decomposition of the contributors to growing congestion in San Francisco-Determining the Role of TNCs
2020 · 41 citations
Evaluating the Ability of Transit Direct Ridership Models to Forecast Medium-Term Ridership Changes: Evidence from San Francisco
2018 · 30 citations
Ohio Long-Distance Travel Model
2007 · 27 citations
Works
17 shown
Are public transit investments based on accurate forecasts? An analysis of the improving trend of transit ridership forecasts in the United States
Transportation Research Part A Policy and Practice
·
2024
·
3 authors
·
Open access
6
citations
The Activity-based model ABIT: Modeling 24 hours, 7 days a week
Transportation research procedia
·
2024
·
8 authors
·
Open access
8
citations
Why has public transit ridership declined in the United States?
Transportation Research Part A Policy and Practice
·
2022
·
6 authors
·
Open access
133
citations
Investigating the Ridership Impact of New Light-Rail Transit and Arterial Bus Rapid Transit Lines in the Twin Cities
Transportation Research Record Journal of the Transportation Research Board
·
2022
·
5 authors
5
citations
Recent Decline in Public Transportation Ridership: Analysis, Causes, and Responses
Transportation Research Board eBooks
·
2021
·
11 authors
·
book
20
citations
Estimating the uncertainty of traffic forecasts from their historical accuracy
Transportation Research Part A Policy and Practice
·
2021
·
4 authors
·
Open access
21
citations
The changing accuracy of traffic forecasts
Transportation
·
2021
·
6 authors
·
Open access
24
citations
Why is traffic congestion getting worse? A decomposition of the contributors to growing congestion in San Francisco-Determining the Role of TNCs
Case Studies on Transport Policy
·
2020
·
7 authors
41
citations
Understanding the Recent Transit Ridership Decline in Major US Cities: Service Cuts or Emerging Modes?
Transportation Research Board 98th Annual MeetingTransportation Research Board
·
2019
·
3 authors
126
citations
Evaluating the Ability of Transit Direct Ridership Models to Forecast Medium-Term Ridership Changes: Evidence from San Francisco
Transportation Research Record Journal of the Transportation Research Board
·
2018
·
2 authors
30
citations
Evaluating the biases and sample size implications of multi-day GPS-enabled household travel surveys
Transportation research procedia
·
2018
·
2 authors
·
Open access
9
citations
A Big Data Mashing Tool for Measuring Transit System Performance
Springer geography
·
2016
·
4 authors
·
chapter
9
citations
MTC’s Travel Model One: Applications of an Activity‐Based Model in its First Year
UKnowledge (University of Kentucky)
·
2012
·
6 authors
·
Open access
8
citations
Evaluating Regional Pricing Strategies in San Francisco--Application of the SFCTA Activity-Based Regional Pricing Model
UKnowledge (University of Kentucky)
·
2010
·
5 authors
·
Open access
17
citations
Enhancement and Application of an Activity-Based Travel Model for Congestion Pricing
UKnowledge (University of Kentucky)
·
2008
·
5 authors
·
Open access
9
citations
Ohio Long-Distance Travel Model
Transportation Research Record Journal of the Transportation Research Board
·
2007
·
5 authors
27
citations
Modeling the Choice to Use Toll and High-Occupancy Vehicle Facilities
Transportation Research Record Journal of the Transportation Research Board
·
2003
·
5 authors
17
citations