Infrastructure

UC Berkeley Develops New User-Friendly Tool to Expedite the Evaluation of Connected Automated Vehicle Technologies

Fu, Zhe
Liu, Hao, PhD
Lu, Xiao-Yun, PhD
2020

Connected Automated Vehicles (CAVs) are similar to other automated vehicles with the distinguishing difference being that CAVs obtain information about road conditionsdirectly from other vehicles and infrastructure (e.g., traffic signals, road sensors) rather than relying solely on onboard sensors. Different CAV technologies are currently being tested and evaluated to assess the prospects for future implementation. These tests involve moving CAV-equipped vehicles on a physical test track and recording how the vehicles operate under different traffic conditions (Figure 1). Since it is...

Inclusionary Zoning in a Monocentric City

Lehe, Lewis
2014

To show how inclusionary zoning alters development, the author finds the most profitable housing design to build on vacant lots at each location in a monocentric city under different regulatory regimes. Section 1 sets up the model by specifying renter's preferences, geography and building parameters. Section 2 solves the developer's profit-maximization problem at each location under each regime. Finally, in Section 3, a numerical simulation confirms the effects predicted by theory and gives a picture of their magnitude.

SimUAM: A Comprehensive Microsimulation Toolchain to Evaluate the Impact of Urban Air Mobility in Metropolitan Areas

Yedavalli, Pavan
Burak Onat, Emin
Peng, Xin
Sengupta, Raja
Waddell, Paul
Bulusu, Vishwanath
Xue, Min
2021

Over the past several years, Urban Air Mobility (UAM) has galvanized enthusiasm from investors and researchers, marrying expertise in aircraft design, transportation, logistics, artificial intelligence, battery chemistry, and broader policymaking. However, two significant questions remain unexplored: (1) What is the value of UAM in a region’s transportation network?, and (2) How can UAM be effectively deployed to realize and maximize this value to all stakeholders, including riders and local economies? To adequately understand the value proposition of UAM for metropolitan areas, we develop...

Aviation System Performance Measures

Gosling, Geoffrey D.
1999

Within the transportation community, there is a growing recognition of the need to consider decisions addressing future investments in the transportation system from a multimodal perspective. This viewpoint has been given added weight by the passage of the Intermodal Surface Transportation Efficiency Act (ISTEA) in 1991, which not only recognized the importance of viewing the transportation system from an intermodal perspective, but also stressed the need to address the efficiency with which the system meets the transportation needs of its users. This approach was reinforced with the...

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...

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...

Preserving Privacy in Road User Charge (RUC) Architectures

Bayen, Alexandre, PhD;
Forscher, Teddy
Shaheen, Susan, PhD
2018

One of the major concerns for the technical implementation of a RUC is the ability to collect the mileage of motorists in a way that preserves and protects individual privacy. With the widespread use of connected devices/smartphones and the growth of connected vehicles and the existence of toll tag readers, it is possible to build and deploy architectures capable of computing advanced fee structures (based upon on mileage, road type, time of day, and speed, among other features) that respect motorist privacy. A possible architecture can rely on the use of virtual trip lines (VTLs) –a...

Pooling Passengers and Services

Forscher, Teddy
Shaheen, Susan, PhD
2018

In the past ten years, passenger and goods movement transportation systems have evolved rapidly. Shared mobility providers are filling gaps in service and creating new markets for delivery; vehicle fleets continue to electrify; and pooled services are increasing vehicle occupancy. The uptake of innovative pooled services, as well as automation, promise to continue the trend of transformative change. As the private sector continues to advance, there is a great need for institutional flexibility in managing and coordinating all users of transportation infrastructure, particularly on the...

Toward Green TODs

Ververo, Robert
Sullivan, Cathleen
2010

Green Transit Oriented Developments (TODs) shrink environmental footprints by reducing Vehicle Kilometers Traveled (VKT)/ Vehicle Miles Travled (VMT) and incorporating green urbanism and architecture in community designs. Synergies from combining TOD and green urbanism derive from increased densities, which promote transit usage and conserve heating/cooling expenses; mixed land uses which promote non-motorized transportation and limited-range electric vehicles; reduced impervious parking services matched by increased open space and community gardens; and, opportunities for generating solar...

China's Urban Transportation System: Issues and Policies Facing Cities

Cherry, Chris
2005

China is the most populous country in the world. With a population of 1.3 billion, meeting the housing and transportation needs of this vast country are on the forefront of the political and academic agenda in China and throughout the world. China has experienced phenomenal economic and social growth and as a result the Chinese have desired more mobility and living space. The effects of these desires are beginning to be seen in new auto oriented ex-urban developments that have larger living spaces than the traditional urban centers and whose road infrastructure is developed to support high...