Infrastructure

VII California: Development and Deployment Proof of Concept and Group-Enabled Mobility and Safety (GEMS)

Misener, Jim
Raja Sengupta
Ahern, Katherine
Gupta, Somak Datta
Dickey, Susan
Kuhn, Tom
Lian, Thang
Manasseh, Christian
Nelson, David
Rezai, Shahram
Sharafsaleh, Ashkan
Shladover, Steven
VanderWerf, Joel
2010

This PATH Research Report covers the (Vehicle-Infrastructure Integration) VII California Development and Deployment (Task Order6217) efforts beginning in 2008 and concluding June 30, 2009. This is a successor to the report for TO 5217and reports theapplications-oriented research subsequent to that work.The report is organized by a synopsis of the background and reasons for the VII California project, then it summarizes some of the antecedent (TO 5217) work: the "Innovative Mobility Showcase" (2005), which established the architecture and, importantly the applications (curve overspeed...

High Accuracy Location Based Services CostBenefit Study: Final Report

Goodliss, Adam
Manasseh, Christian
Ekambaram, Venkatesan
Raja Sengupta
Kanafani, Adib
Ramchandran, Kannan
2011

This report presents a benefit and cost study of a Cooperative High‐Accuracy LOcation (C‐HALO) service. A High Accuracy Location service should be ubiquitous and reliable as the GPS constellation. A survey of the literature on location services reveals a body of work on the benefits of a high accuracy location service. Focusing on road travel, benefits are estimated to be between $160-$320 billion dollars over slightly more than 20 years. The benefits arise from smoother traffic flow on the roads leading to reduced travel delays, and fewer accidents leading to reduced injuries and saved...

Algorithm for Finding Optimal Paths in a Public Transit Network with Real-Time Data

Jariyasunant, Jerald
Mai, Eric
Raja Sengupta
2011

Recently, transit agencies have begun opening their route configuration and schedule data to the public, as well as providing online application programming interfaces to real-time bus positions and arrival estimates. On the basis of this infrastructure for providing transit data over the Internet, the authors developed an algorithm to calculate the travel times of K shortest paths in a public transportation network where all wait and travel times were known only in real time. Although there was a large body of work on routing algorithms in transit networks, the authors took cues from an...

BigActors: a Model for Structure-Aware Computation

Pereira, Eloi
Kirsch, Christoph M.
De Sousa, João Borges
Raja Sengupta
2013

This paper describes a model of computation for structure-aware computing called the BigActor model. The model is a hybrid. It combines the Actor model [1] and the Bigraph model [10]. The contributions of this paper are an operational semantics, an example illustrating how the model supports the concise programming of a mobile agent working in a ubiquitous computing world, a query language enabling a bigActor to observe the world around it, and a definition giving semantics to the feedback loop in control theory in the context of this model. This is followed by three theorems showing how...

The C3UV testbed for collaborative control and information acquisition using UAVs

Pereira, Eloi
Hedrick, Karl
Raja Sengupta
2013

In this paper we introduce the Center for Collaborative Control of Unmanned Vehicles (C3UV) testbed for collaborative information acquisition. The C3UV testbed has been used for demonstrating a wide range of information-oriented applications executed by collaborative teams of Unmanned Aerial Vehicles (UAVs). This paper presents the C3UV testbed from an architectural stand-point. The testbed includes a estimation and control architecture and a software architecture. The estimation and control architecture is a set of components that can be composed to perform specific missions. The software...

The C3UV testbed for collaborative control and information acquisition using UAVs

Pereira, Eloi
Hedrick, Karl
Raja Sengupta
2013

In this paper we introduce the Center for Collaborative Control of Unmanned Vehicles (C3UV) testbed for collaborative information acquisition. The C3UV testbed has been used for demonstrating a wide range of information-oriented applications executed by collaborative teams of Unmanned Aerial Vehicles (UAVs). This paper presents the C3UV testbed from an architectural stand-point. The testbed includes a estimation and control architecture and a software architecture. The estimation and control architecture is a set of components that can be composed to perform specific missions. The software...

Assessing the Value of Urban Air Mobility through Metropolitan-Scale Microsimulation: A Case Study of the San Francisco Bay Area

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

Urban Air Mobility (UAM) has garnered billions of dollars in investment with early proofs-of-concept and deployments across the world. However, its viability as a transport mode will be strongly determined by benefits in travel time. Hence, before optimizing the planning and infrastructure provision for UAM’s deployment, the dynamics of UAM trips must first be simulated and understood in order to determine the total addressable market. This work contributes to the existing scholarship in several ways. First, we use an ultra-fast parallelized, GPU-based microsimulator, MANTA, to study the...

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

Yedavalli, Pavan
Burak Onat, Emin
Peng, Xin
Raja Sengupta
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...

An autonomous Unmanned Aerial Vehicle Exploration Platform with a Hierarchical Control Method for Post-Disaster Infrastructures

Peng, Xin
Su, Gaofeng
Raja Sengupta
2024

Catastrophic natural disasters like earthquakes can cause infrastructure damage. Emergency response agencies need to assess damage precisely while repeating this process for infrastructures with different shapes and types. The authors aim for an autonomous Unmanned Aerial Vehicle (UAV) platform equipped with a 3D LiDAR sensor to comprehensively and accurately scan the infrastructure and map it with a predefined resolution r. During the inspection, the UAV needs to decide on the Next Best View (NBV) position to maximize the gathered information while avoiding collision at high speed. The...

Autonomous UAV-Based Structural Damage Exploration Platform for Post-Disaster Reconnaissance

Peng, Xin
Su, Gaofeng
Folk, Benjamin
Chen, ZhiQiang
Raja Sengupta
2024

Rapid structural health inspection process is essential for post-disaster reconnaissance.
Nowadays, visual inspection still dominates the practice, which is time-consuming, expensive,
and unsafe. To reduce labor costs and guarantee personnel safety, we develop a fully
autonomous UAV-based structural damage exploration platform that explores and rebuilds post disaster environment maps with limited prior information. As a result, environment maps can be
used for further damage detection and risk evaluation. The proposed platform implements a
closed-loop control strategy...