ITS Berkeley

Strategic Charging Infrastructure Deployment for Electric Vehicles

Shen, Max
Li, Meng
He, Fang
Jia, Yinghao
2016

Electric vehicles (EV) are promoted as a foreseeable future vehicle technology to reduce dependence on fossil fuels and greenhouse gas emissions associated with conventional vehicles. This paper proposes a data-driven approach to improving the electrification rate of the vehicle miles traveled (VMT) by a taxi fleet in Beijing. Specifically, based on the gathered real-time vehicle trajectory data of 46,765 taxis in Beijing, we conduct time-series simulations to derive insight for the public charging station deployment plan, including the locations of public charging stations, the number of...

Experimental Studies for Traffic Incident Management

Brownstone, David
McBride, Michael
Kong, Si-Yuan
Mahmassani, Amine
2017

This report documents the second year of a project using economics experimental techniques to investigate novel approaches for mitigating congestion caused by non-recurring traffic incidents. The first year demonstrated the feasibility of this approach and carried out a number of experiments using University of California, Irvine (UCI) undergraduates as experimental subjects. The experimental platform is described in Section 3 of this report. Most of the experiments conducted during the first year examined different variable message sign (VMS) wording, and later experiments examined...

Future of Mobility White Paper

Shaheen, Susan, PhD
Totte, Hannah
Stocker, Adam
2018

Transportation is arguably experiencing its most transformative revolution since the introduction of the automobile. Concerns over climate change and equity are converging with dramatic technological advances. Although these changes – including shared mobility and automation – are rapidly altering the mobility landscape, predictions about the future of transportation are complex, nuanced, and widely debated. California is required by law to renew the California Transportation Plan (CTP), updating its models and policy considerations to reflect industry changes every five years. This...

Enabling Demand Modeling from Privately Held Mobility Data

Pozdnoukhov, Alexei
Sheehan, Madeleine
Yin, Mogeng
2018

This papers presents the design of the travel mode detection component within a generic architecture of processing individual mobility data. It approaches mode detection in two steps, each aiming at a particular objective. The first step develops a discriminative classifier that detects the mode of the observed trips or a sequence of modes in a multiple leg journey. It requires a considerable amount of ground truth data with known modes to be available for training. It also relies on a k-shortest path algorithm that generates plausible alternatives routes for the journey. The second step...

Transit Oriented Development and Commercial Gentrification: Exploring the Linkages

Chapple, Karen
Loukaitou-Sideris, Anastasia
Gonzalez, Silvia R.
Kadin, Dov
Poirer, Joseph
2018

As central cities in California continue their renaissance, commercial gentrification is often identified by residents as a concern. For many, commercial gentrification means the intrusion of new businesses that force out a favorite food shop or a longstanding retail store because of higher rents. For others, it means an influx of hip cafés, trendy retail boutiques, and gourmet fast food restaurants - places that change the fabric of their familiar neighborhood, for better or for worse. For many merchants, commercial gentrification can have implications for economic survival, as increased...

Sustainable Operation of Arterial Networks

Kalathil, Dileep
Kurzhanskiy, Alex A.
Varaiya, Pravin
2017

This report describes operational data analysis and modeling of arterial networks with signalized intersections as follows: The setup for data collection, analysis and simulation is presented in Section 2.1. Detailed analysis of collected signal phasing and traffic data is provided in section 2.2. Arterial traffic and platoon modeling is described in Section 2.3. Simulation results of the Rollins Park network is discussed in Section 2.4. Research conducted under this task is an important stepping stone for building a three-level information and control system for urban networks with high-...

Mapping and Improving the Delivery Process of Highway Pavement Rehabilitation Projects

Tommelein, Iris D.
Blampied, Nigel
2018

Highway pavement rehabilitation (HPR) is a service provided by departments of transportation (DOTs) worldwide. The process of delivering HPR projects involves not only a transportation department but also many other project participants and stakeholders; furthermore, it is subject to numerous technical- as well as socio-political considerations. Interestingly—though not surprisingly—the processes DOTs use to deliver this service vary widely, not only between countries or between states in the US, but also regionally within a given state such as California. While some variation is to be...

Demand Forecasting and Activity-based Mobility Modeling from Cell Phone Data

Pozdnukhov, Alexey
2016

This project develops machine learning algorithms and methods for processing of cell phone location logs to generate travel behavior data. The project initially focuses on bias correction and activity inference for generating activity-based travel demand models. Inferred activity chains are used to calibrate an agent-based traffic micro-simulation for the SF Bay Area, and validated on loop detector counts.

Untapped Opportunities: Assessment of Organizational Strategies to Improve Border Coordination in California at the U.S. and Mexico Border; Final Report for California Integrated Border Approach Strategy, Phase 2

Trapenberg Frick, Karen
Deakin, Elizabeth
Whittington, Jan
Anderson, Karl
Leshner, Eleanor
Garrett, Mark
2017

In 2013, The California Department of Transportation-District 11 (Caltrans) launched the California Integrated Border Approach Strategy (CA-IBAS) in response to a need for a better-integrated border transportation system that reduces impacts on border communities. Work was conducted in two phases to identify ways to better address regional mobility needs and the traveler experience in California’s communities along the California-Mexico border. During Phase 1, led by METRANS, the team conducted a preliminary assessment of key institutional and policy issues at CaliforniaMexico land POEs,...

Untapped Opportunities: Assessment of Organizational Strategies to Improve Border Coordination in California at the U.S. and Mexico Border; Final Report for California Integrated Border Approach Strategy, Phase 2

Trapenberg Frick, Karen
Deakin, Elizabeth
Whittington, Jan
Anderson, Karl
Leshner, Eleanor
Garrett, Mark
2017

In 2013, The California Department of Transportation-District 11 (Caltrans) launched the California Integrated Border Approach Strategy (CA-IBAS) in response to a need for a better-integrated border transportation system that reduces impacts on border communities. Work was conducted in two phases to identify ways to better address regional mobility needs and the traveler experience in California’s communities along the California-Mexico border. During Phase 1, led by METRANS, the team conducted a preliminary assessment of key institutional and policy issues at CaliforniaMexico land POEs,...