Gregory D. Erhardt
Impact in
- Transportation top 0.5%
- Transportation Planning and Optimization
- Urban Transport and Accessibility
- Human Mobility and Location-Based Analysis
- Automotive Engineering top 1%
- Transportation and Mobility Innovations
Papers in
-
- Transportation Planning and Optimization 32
- Urban Transport and Accessibility 20
- Human Mobility and Location-Based Analysis 4
-
- Transportation and Mobility Innovations 18
- Co-authors
- Joe Castiglione (5 shared papers)Mei Chen (6 shared papers)Bhargava Sana (5 shared papers)Drew Cooper (4 shared papers)Sneha Roy (3 shared papers)Candace Brakewood (5 shared papers)Kari Watkins (5 shared papers)Simon Berrebi (4 shared papers)
- Journals
- Transportation Research Part A Policy and Practice (4 papers)Transportation (3 papers)Transportation Research Record Journal of the Transportation Research Board (12 papers)Case Studies on Transport Policy (1 paper)Science Advances (1 paper)
- Partner nations
- United StatesUnited KingdomGermany
In The Last Decade
Gregory D. Erhardt
37 papers receiving 752 citations
Gregory D. Erhardt's Hit Papers
Peers
Comparison fields: 5 of 64
- Transportation 650
- Automotive Engineering 554
- Marketing 168
- Building and Construction 139
- Safety, Risk, Reliability and Quality 44
Countries citing papers authored by Gregory D. Erhardt
This map shows the geographic impact of Gregory D. Erhardt's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Gregory D. Erhardt with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gregory D. Erhardt more than expected).
Fields of papers citing papers by Gregory D. Erhardt
This network shows the impact of papers produced by Gregory D. Erhardt. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Gregory D. Erhardt. The network helps show where Gregory D. Erhardt may publish in the future.
Co-authors
The 25 scholars most cited alongside Gregory D. Erhardt, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 39 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | Do transportation network companies decrease or increase congestion? Hit paper breakdown → | 2019 | 306 |
| 2 | 2022 | 90 | |
| 3 | Understanding the Recent Transit Ridership Decline in Major US Cities: Service Cuts or Emerging Modes? | 2019 | 69 |
| 4 | 2021 | 65 | |
| 5 | 2021 | 50 | |
| 6 | 2020 | 26 | |
| 7 | 2018 | 24 | |
| 8 | 2007 | 19 | |
| 9 | 2021 | 14 | |
| 10 | 2021 | 14 | |
| 11 | Evaluating Regional Pricing Strategies in San Francisco--Application of the SFCTA Activity-Based Regional Pricing Model | 2010 | 11 |
| 12 | 2003 | 11 | |
| 13 | 2021 | 11 | |
| 14 | 2020 | 10 | |
| 15 | Enhancement and Application of an Activity-Based Travel Model for Congestion Pricing | 2008 | 8 |
| 16 | 2018 | 8 | |
| 17 | 2021 | 5 | |
| 18 | 2018 | 5 | |
| 19 | MTC’s Travel Model One: Applications of an Activity‐Based Model in its First Year | 2012 | 4 |
| 20 | 2023 | 3 |
About Gregory D. Erhardt
Gregory D. Erhardt is a scholar working on Transportation, Automotive Engineering, Building and Construction, Safety, Risk, Reliability and Quality and Control and Systems Engineering, having authored 39 papers that have together received 787 indexed citations. Recurring topics across this work include Transportation Planning and Optimization (32 papers), Urban Transport and Accessibility (20 papers), Transportation and Mobility Innovations (18 papers), Traffic and Road Safety (5 papers), Traffic Prediction and Management Techniques (5 papers), Human Mobility and Location-Based Analysis (4 papers), Smart Parking Systems Research (3 papers) and Traffic control and management (3 papers). The work is most often cited by research in Transportation (650 citations), Automotive Engineering (554 citations), Marketing (168 citations), Building and Construction (139 citations) and Safety, Risk, Reliability and Quality (44 citations). Gregory D. Erhardt has collaborated with scholars based in United States, United Kingdom and Germany. Frequent co-authors include Joe Castiglione, Mei Chen, Bhargava Sana, Drew Cooper, Sneha Roy, Candace Brakewood, Kari Watkins, Simon Berrebi, Joel Freedman and Mei Chen. Their work appears in journals such as Transportation Research Part A Policy and Practice, Transportation, Transportation Research Record Journal of the Transportation Research Board, Case Studies on Transport Policy and Science Advances.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.