Trends in onroad transportation energy and emissions
HC Frey - Journal of the Air & Waste Management Association, 2018 - Taylor & Francis
ABSTRACT Globally, 1.3 billion on-road vehicles consume 79 quadrillion BTU of energy,
mostly gasoline and diesel fuels, emit 5.7 gigatonnes of CO2, and emit other pollutants to …
mostly gasoline and diesel fuels, emit 5.7 gigatonnes of CO2, and emit other pollutants to …
Integrated optimization of traffic signals and vehicle trajectories at isolated urban intersections
Existing traffic signal control systems only allocate green time to different phases to avoid
conflicting vehicle movements. With advances in connected and automated vehicle (CAV) …
conflicting vehicle movements. With advances in connected and automated vehicle (CAV) …
Optimal vehicle speed trajectory on a signalized arterial with consideration of queue
Vehicle speed trajectory significantly impacts fuel consumption and greenhouse gas
emissions, especially for trips on signalized arterials. Although a large amount of research …
emissions, especially for trips on signalized arterials. Although a large amount of research …
Integration of automated vehicles in mixed traffic: Evaluating changes in performance of following human-driven vehicles
Abstract The introduction of Automated Vehicles (AVs) into the transportation network is
expected to improve system performance, but the impacts of AVs in mixed traffic streams …
expected to improve system performance, but the impacts of AVs in mixed traffic streams …
Using high-resolution event-based data for traffic modeling and control: An overview
X Wu, HX Liu - Transportation research part C: emerging technologies, 2014 - Elsevier
Research on using high-resolution event-based data for traffic modeling and control is still at
early stage. In this paper, we provide a comprehensive overview on what has been …
early stage. In this paper, we provide a comprehensive overview on what has been …
Safety, energy, and emissions impacts of adaptive cruise control and cooperative adaptive cruise control
Connected and automated vehicle technologies have the potential to significantly improve
transportation system performance. In particular, advanced driver-assistance systems, such …
transportation system performance. In particular, advanced driver-assistance systems, such …
Development of a heavy-duty diesel modal emissions and fuel consumption model
M Barth, T Younglove, G Scora - 2005 - escholarship.org
There have been significant improvements in recent years in transportation and emissions
modeling, in order to better evaluate transportation operational effects and associated …
modeling, in order to better evaluate transportation operational effects and associated …
On-road measurement of vehicle tailpipe emissions using a portable instrument
A study design procedure was developed and demonstrated for the deployment of portable
onboard tailpipe emissions measurement systems for selected highway vehicles fueled by …
onboard tailpipe emissions measurement systems for selected highway vehicles fueled by …
Fuel use and emissions comparisons for alternative routes, time of day, road grade, and vehicles based on in-use measurements
HC Frey, K Zhang, NM Rouphail - Environmental science & …, 2008 - ACS Publications
The objective here is to quantify the variability in emissions of selected light duty gasoline
vehicles by routes, time of day, road grade, and vehicle with a focus on the impact of routes …
vehicles by routes, time of day, road grade, and vehicle with a focus on the impact of routes …
A vehicle-specific power approach to speed-and facility-specific emissions estimates for diesel transit buses
Emissions during a trip often depend on transient vehicle dynamics that influence the
instantaneous engine load. Vehicle specific power (VSP) is a proxy variable for engine load …
instantaneous engine load. Vehicle specific power (VSP) is a proxy variable for engine load …