ITS Berkeley

Optimal Infrastructure System Maintenance and Repair Policies with Random Deterioration Model Parameters

Park, Sejung
2004

Accurate facility deterioration models are important inputs for the selection of Infrastructure Maintenance, Repair, and Reconstruction (MR & R) policies. Deterioration models are developed based on expert judgment or empirical observations. These resources, however, might not be sufficient to accurately represent the performance of infrastructure facilities. Incorrect deterioration models may lead to wrong predictions of infrastructure performance and selection of inappropriate MR & R policies. This results in higher lifecycle costs. Existing infrastructure MR & R...

Urban Mass Transit Planning

Homburger, Wolfgang S.
Carroll, J. Douglas, Jr.
Einsweiler, Robert C.
Fertal, Martin J.
Herring, Frank W.
Hyde, Donald C.
Kleiber, Michael C.
Lash, Michael
Pignataro, Louis J.
Sevin, Ali F.
1967

In the fall of 1966 a short course on ’’Urban Mass Transit Planning” was developed by the Polytechnic Institute of Brooklyn with the assistance of the New York State Science and Technology Foundation and the cooperation of the U.S. Bureau of Public Roads. The course was presented both by the Polytechnic Institute in Brooklyn and by the Institute of Transportation and Traffic Engineering, University of California, and University of California Extension, in Asilomar, Calif.A set of course notes was written for that offering and reproduced in limited quantity. Presented herein is an expansion...

Public Transportation Systems: Mini-Projects and Homework Exercises

Gonzales, Eric J.
Pilachowski, Josh
Gayah, Vikash V.
Cassidy, Michael
Daganzo, Carlos F.
2010

The Course Notes for a graduate-level course in Public Transportation include seven homework exercises and three mini-projects. Homework topics include optimization, point-to-point travel, congestion relief, designing a feeder bus system, demand-responsive transit, and bus pairings. The mini-projects involve bus rapid transit, designing a transit network, and bus and driver assignment.

Public Transportation Systems:Basic Principles of System Design,Operations Planning and Real-TimeControl

Daganzo, Carlos F.
2010

This document is based on a set of lecture notes prepared in 2007-2010 for a University of California, Berkeley graduate course, Public Transportation Systems, a course targeted to first year graduate students with diverse academic backgrounds. Systems are examined in order of increased complexity so that generic insights evident in simple systems can be put to use as knowledge building blocks for the study of more complex systems. The document is organized in eight modules: five on planning (general, shuttle systems, corridors, two dimensional systems, and unconventional transit); two on...

Problem Sets: Fundamentals Of Transportation And Traffic Operations

Daganzo, Carlos F.
1998

These problem sets comprise a supplement to Fundamentals of Transportation and Traffic Operations (C. Daganzo, Pergamon, 1997). Academicians can also obtain a companion set of solutions by writing to "Institute of Transportation Studies, Publications Office, 109 McLaughlin Hall, University of California, Berkeley, CA 94720" or by sending e-mail to its@its.berkeley.edu.

Micromobility evolution and expansion: Understanding how docked and dockless bikesharing models complement and compete – A case study of San Francisco

Lazarus, Jessica
Pourquier, Jean Carpentier
Feng, Frank
Hammel, Henry
Shaheen, Susan
2020

Shared micromobility – the shared use of bicycles, scooters, or other low-speed modes – is an innovative transportation strategy growing across the United States that includes various service models such as docked, dockless, and e-bike service models. This research focuses on understanding how docked bikesharing and dockless e-bikesharing models complement and compete with respect to user travel behaviors. To inform our analysis, we used two datasets from February 2018 of Ford GoBike (docked) and JUMP (dockless electric) bikesharing trips in San Francisco. We employed three methodological...

Automated Vehicles Industry Survey of Transportation Infrastructure Needs

Wang, Pei
McKeever, Benjamin
Chan, Ching-Yao
2022

Automated vehicle (AV) deployment can bring about transformational changes to transportation and society as a whole. The infrastructure owner-operators (IOOs), who own, maintain, and operate the infrastructure, have the opportunity to work jointly with the AV industry to provide safe and efficient operations. A key question for the IOOs is, “What transportation infrastructure improvements do AV manufacturers believe will facilitate and improve AV performance?” This study was designed to address this question through a comprehensive survey approach, including an online survey and follow-up...

An improvement on the end-of-life of High-speed rail rolling stocks considering CFRP composite material replacement

Rungskunroch, Panrawee
Kaewunreuen, Sakdirat
Shen, Zuo-Jun
2019

It is undeniably true that transportation systems positively impact human life but, the use of transportation systems also emits green house gasses in the environment which leads to global warming. In this day and age, various technologies are being combined with transportation systems, aimed at reducing the global impact of greenhouse gas emissions. The high-speed rail (HSR), which is well-known for low CO2emissions, has continually been improved, especially its model. In this study, the material replacement method is taken to account for a feasibility study on the next model of the HSR....

Where the Crosswalk Ends: Mapping Crosswalk Coverage via Satellite Imagery in San Francisco

Moran, Marcel E.
2022

Marked crosswalks are the primary means of safeguarding pedestrian travel at intersections in American cities. In the face of decades-high pedestrian fatalities nationwide, the provision of adequate cross walks is highly salient. Though, how they are spatially distributed across an entire city, and vary by neighborhood, has drawn little academic scrutiny. Given that, this study utilizes satellite imagery to map the presence of marked crosswalks throughout San Francisco, a dense, walkable city that has struggled to reach its pedestrian-safety goals. For the first time, this allows for a...

Are shelters in place? Mapping the distribution of transit amenities via a bus-stop census of San Francisco

Moran, Marcel E
2022

Transit stops serve as crucial components of journeys for riders, but their condition is often left out of equity considerations. Two important empirical questions are what stop amenities, such as places to sit, clear sign age, shelters for inclement weather, and unobstructed curbs are present, and how are they distributed across systems, which may reveal neighborhood or route-specific disparities. San Francisco, CA represents an ideal case for which to pursue this question, given it maintains a ‘transit first’ policy directive that mandates public space prioritize transit over private...