Recent Work
Parent: Center for Activity Systems Analysis
eScholarship stats: History by Item for June through September, 2026
| Item | Title | Total requests | 2026-09 | 2026-08 | 2026-07 | 2026-06 |
|---|---|---|---|---|---|---|
| 0r75311t | The Four Step Model | 822 | 213 | 238 | 148 | 223 |
| 7j0003j0 | The Four Step Model | 542 | 158 | 211 | 82 | 91 |
| 86h7f5v0 | The Activity-Based Approach | 364 | 108 | 105 | 71 | 80 |
| 9pk298qc | Measuring Physical Accessibility with Space-Time Prisms in a GIS: A Case Study of Access to Health-Care Facilities | 216 | 100 | 47 | 34 | 35 |
| 4z11d19q | An Activity-Based Microsimulation Model for Travel Demand Forecasting | 159 | 46 | 61 | 29 | 23 |
| 354750t4 | Estimation of Vehicular Emissions by Capturing Traffic Variations | 147 | 24 | 52 | 24 | 47 |
| 4nk4q801 | An Empirical Investigation of the Dynamic Processes on Activity Scheduling and Trip Chaining | 137 | 24 | 49 | 21 | 43 |
| 5cc9w7pp | Impact Of Real-World Driving Characteristics On Vehicular Emissions | 134 | 21 | 61 | 18 | 34 |
| 7rb0h6gd | Why Do People Drive to Shop? Future Travel and Telecommunications Tradeoffs | 131 | 49 | 35 | 21 | 26 |
| 5sv5v9qt | The Activity-Based Approach | 128 | 38 | 62 | 11 | 17 |
| 56t8j1n6 | Structural Equation Modeling for Travel Behavior Research | 127 | 36 | 42 | 12 | 37 |
| 5qq985sv | Does Neighborhood Design Influence Travel? A Behavioral Analysis of Travel Diary and GIS Data | 123 | 31 | 38 | 17 | 37 |
| 3bg4h82g | Can Land Use Policy Really Affect Travel Behavior? A Study of the Link between Non-Work Travel and Land Use Characteristics | 117 | 38 | 30 | 14 | 35 |
| 9tc6f64c | Shopping without Travel or Travel without Shopping? An Investigation of Electronic Home Shopping | 114 | 32 | 26 | 29 | 27 |
| 1mb5w3p2 | A Model of Activity Participation and Travel Interactions Between Household Heads | 104 | 22 | 35 | 19 | 28 |
| 3826k93v | The Tracer Data Collection System: Implementation and Operational Experience | 103 | 33 | 24 | 12 | 34 |
| 0r28t441 | Toward Dynamic, Longitudinal, Agent-Based Microsimulation Models of Human Activity in Urban Settings | 102 | 25 | 36 | 15 | 26 |
| 2496s5nm | Application of Space-Time Prisms for the Measurement of Accessibility | 100 | 29 | 37 | 11 | 23 |
| 0xr3w1n5 | Putting Behavior in Household Travel Behavior Data: An Interactive GIS-Based Survey via the Internet | 98 | 38 | 17 | 15 | 28 |
| 08z0p3v3 | How Households Use Different Types of Vehicles: A Structural Driver Allocation and Usage Model | 94 | 29 | 27 | 11 | 27 |
| 2js9554x | The Potential for Integrating GIS in Activity-Based Forecasting Models | 93 | 34 | 22 | 16 | 21 |
| 3vv5s6jk | An Empirical Investigation of the Underlying Behavioral Processes of Trip Chaining | 93 | 28 | 21 | 22 | 22 |
| 4zv467qv | TRACER: In-Vehicle, GPS-Based Wireless Technology for Traffic Surveillance and Management. | 93 | 33 | 32 | 8 | 20 |
| 7jm9c08m | New Highways, Urban Development and Induced Travel | 93 | 25 | 41 | 7 | 20 |
| 15x0v29d | Evaluation of a Shared-Use Electric Vehicle Program: Integrating a Web-Based Survey with In-Vehicle Tracking | 90 | 27 | 28 | 12 | 23 |
| 9gn7265f | The Built Environment as a Determinant of Walking Behavior: Analyzing Non-Work Pedestrian Travel in Portland, Oregon | 90 | 18 | 25 | 19 | 28 |
| 0j04f7gv | Land Use Influences on Trip Chaining in Portland, Oregon | 89 | 5 | 24 | 23 | 37 |
| 4xf6r519 | Comparing the Influence of Land Use on Nonwork Trip Generation and Vehicle Distance Traveled: An Analysis using Travel Diary Data. | 89 | 26 | 27 | 8 | 28 |
| 7w59p200 | TravelBehavior.com: Activity Approaches to Modeling the Effects of Information Technology on Personal Travel | 89 | 29 | 35 | 8 | 17 |
| 5z12433b | Accessibility and Auto Use in a Motorized Metropolis | 85 | 25 | 33 | 9 | 18 |
| 40w6z879 | The Design and Implementation of an On-Line Travel and Activity Survey | 79 | 26 | 17 | 15 | 21 |
| 95p732sh | Measuring the Impact of Efficient Household Travel Decisions on Potential Travel Time Savings and Accessibility Gains | 79 | 23 | 25 | 18 | 13 |
| 1zd3g24p | Collecting Activity Data from GPS Readings | 75 | 31 | 13 | 11 | 20 |
| 62c2h8qr | Incorporating Yellow-Page Databases in GIS-Based Transportation Models | 74 | 29 | 21 | 8 | 16 |
| 47f366f3 | Experimenting with a Computerized Self-Administrative Survey: Evaluating a Pilot Study | 73 | 22 | 24 | 8 | 19 |
| 06j9p6t3 | Consumer E-Commerce, Virtual Accessibility and Sustainable Transport | 71 | 16 | 22 | 10 | 23 |
| 5m45p0sb | Towards Distributed Data Collection and Peer-to-Peer Data Sharing | 71 | 33 | 15 | 10 | 13 |
| 8dp3172d | GPS/GIS Technologies for Traffic Surveillance and Management: A Testbed Implementation Study | 71 | 24 | 19 | 15 | 13 |
| 1zf82002 | Conducting an Interactive Survey of Household Weekly Activities via Internet: Preliminary Results from a Pilot Study | 70 | 23 | 22 | 7 | 18 |
| 3tm4q252 | A Latent Factor Model of Observed Activities | 70 | 18 | 12 | 8 | 32 |
| 1596c2wb | An Activity-Based Microsimulation Model for Generating Synthetic Activity-Travel Patterns: Initial Results | 65 | 25 | 18 | 9 | 13 |
| 3867z3s9 | A GPS Enhanced In-Vehicle Extensible Data Collection Unit | 65 | 24 | 18 | 4 | 19 |
| 9zd6c7dh | Land Use, Urban Design, and Non-Work Travel: Reproducing for Portland, Oregon, Empirical Tests from other Urban Areas | 63 | 19 | 21 | 8 | 15 |
| 68t9d9m4 | An Assessment of the Interaction of the Land Use-Transportation System and Travel Behavior | 61 | 22 | 14 | 5 | 20 |
| 0r21q5jw | iCHASE: An Internet Computerized Household Activity Scheduling Elicitor Survey | 55 | 14 | 19 | 5 | 17 |
| 5nj1b37b | A Model of Household Demand for Activity Participation and Mobility | 55 | 5 | 15 | 12 | 23 |
| 8j85r8qm | The Household Activity Pattern Problem: General Formulation and Solution | 55 | 8 | 18 | 5 | 24 |
| 951343hf | A Simultaneous Model of Household Activity Participation and Trip Chain Generation | 55 | 6 | 22 | 6 | 21 |
| 9730g8tn | An Activity-Based Travel Pattern Generation Model | 54 | 12 | 17 | 11 | 14 |
| 6nb6d6wx | An Activity-Based Approach to Accessibility | 51 | 15 | 14 | 7 | 15 |
Note: Due to the evolving nature of web traffic, the data presented here should be considered approximate and subject to revision. Learn more.