Progressive Deployment Steps Leading Toward an Automated Highway System

2000 ◽  
Vol 1727 (1) ◽  
pp. 154-161 ◽  
Author(s):  
Steven E. Shladover
Keyword(s):  
Economic Feasibility ◽  
Cruise Control ◽  
Deployment Strategy ◽  
Passenger Vehicles ◽  
Transit Buses ◽  
Heavy Trucks ◽  
Future System ◽  
Road Maps ◽  
Automated Highway ◽  
Highway Automation

The most serious challenge to the credibility of highway automation as a potential solution to transportation problems has been the lack of a convincing deployment strategy. Such a strategy is needed to show how to advance, step by step, from today’s transportation system to a future system that includes automated highway systems (AHSs). The existing literature on AHS deployment is reviewed, and a set of principles that can be used to govern the design of AHS deployment strategies is suggested. A deployment sequence for AHSs is proposed, beginning with adaptive cruise control and then adding elements of vehicle-vehicle cooperation and lane protection to build toward AHS capabilities within the constraints of technological and human factors and economic feasibility. Finally, some example deployment “road maps” are shown for transit buses, heavy trucks, and light-duty passenger vehicles.

Low Speed Override of Passenger Vehicles with Heavy Trucks

2019 ◽  
Author(s):  
David Danaher ◽  
William Neale ◽  
Sean McDonough ◽  
Drew Donaldson
Keyword(s):  
Low Speed ◽  
Passenger Vehicles ◽  
Heavy Trucks

scholarly journals Performance of Rear Under-Ride Protection Device (RUPD) During Car to Heavy Truck Rear Impact

2019 ◽  
Vol 8 (6) ◽  
pp. 3367-3375
Keyword(s):  
Experimental Tests ◽  
Structure Design ◽  
Design Stage ◽  
Protection Device ◽  
Heavy Vehicles ◽  
Passenger Vehicles ◽  
Rear Impact ◽  
Heavy Trucks ◽  
Heavy Truck ◽  
Crash Tests

Passenger vehicles crashes with Under-ride rear end of heavy vehicles result in fatal injuries due to sliding of passenger car beneath heavy trucks frames. This is related to an improper structure design of rear under-ride protection device (RUPD) that is mounted to the rear of the heavy vehicles. The design of effective RUPD must be taken into consideration during the design stage of truck chassis frame. There are two types of analyses used to investigate the performance of trucks RUPDs such as experimental tests and numerical analysis or simulation. This review aims to discuss the available research methods on the performance of RUPDs during car to heavy truck rear impact, and record their lack and potential areas. Moreover various crash velocities will be discussed for the car-to-heavy truck rear impact tests, as well as different scales of car frontal crash tests are included. Furthermore energy absorption capability of different truck RUPDs designs will be presented in this paper.

Driver Fatigue/Inattention Monitoring Device: An Integrated System for Heavy Trucks

2005 ◽  
Author(s):  
Christopher W. Ferrone ◽  
Charles Sinkovits
Keyword(s):  
Monitoring System ◽  
Integrated System ◽  
Transportation Safety ◽  
Monitoring Device ◽  
Cruise Control ◽  
Driver Fatigue ◽  
Heavy Trucks ◽  
Fatigue Monitoring ◽  
Audible Alarm ◽  
Single Vehicle

The National Transportation Safety Board has reported statistics which indicate that 31% of all fatal-to-the-truck driver accidents occur due to fatigue/inattention [1] and 58% of all single-vehicle large truck crashes were also fatigue related [2]. If these numbers can be reduced, many lives can be saved. A Driver Fatigue Monitoring System has been designed and built to monitor whether a driver is sleeping or inattentive. This integrated system monitors the steering input behavior of the driver during a specified period of time. If the number of steering inputs is below the expected predetermined threshold, the system activates an audible alarm and light in the cab, waking the driver. Furthermore, this system can deactivate cruise control as well as activate various other preprogrammed truck systems or components to further aid in the control of the truck and to alert nearby motorists.

Protecting Passenger Vehicles from Side Underride with Heavy Trucks

2021 ◽  
Author(s):  
Garrett Mattos ◽  
Keith Friedman ◽  
Aaron Kiefer ◽  
Perry Ponder
Keyword(s):  
Passenger Vehicles ◽  
Heavy Trucks

Micro-Simulation of Truck Platooning with Cooperative Adaptive Cruise Control: Model Development and a Case Study

2018 ◽  
Vol 2672 (19) ◽  
pp. 55-65 ◽  
Author(s):  
Hani Ramezani ◽  
Steven E. Shladover ◽  
Xiao-Yun Lu ◽  
Osman D. Altan
Keyword(s):  
Adaptive Cruise Control ◽  
Fuel Efficiency ◽  
Model Development ◽  
Simulation Method ◽  
Cruise Control ◽  
Passenger Cars ◽  
Lane Changing ◽  
Heavy Trucks ◽  
Cooperative Adaptive Cruise Control ◽  
Micro Simulation

Cooperative adaptive cruise control (CACC) systems have the potential to improve traffic flow and fuel efficiency, but these effects are challenging to estimate. This paper reports the development of a micro-simulation model to represent these impacts for heavy trucks using CACC when they share a freeway with manually driven passenger cars. The simulation incorporates automated truck-following models that have been derived from experimental data recorded on heavy trucks driven under CACC, adaptive cruise control (ACC), and conventional cruise control (CC). The simulation includes other behavioral models for lane changing, lane change cooperation and lane use restrictions for trucks to better capture real-world traffic dynamics. The paper explains the calibration of the simulation method for a 15-mile urban freeway corridor with heavy truck traffic and significant congestion. Simulation results for different market penetration rates show that truck CACC improved traffic operations for trucks in terms of vehicle miles traveled, average speed, and flow rate. In addition, truck CACC did not adversely affect passenger car operations and in some locations it even produced considerable improvements in the general traffic conditions.

scholarly journals Automotive Radar using AWR2243 Booster Pack

2020 ◽  
Vol 16 (15) ◽  
pp. 132
Author(s):  
Arvind Vishnubhatla
Keyword(s):  
Continuous Wave ◽  
Motor Vehicles ◽  
Single Chip ◽  
Cruise Control ◽  
Automotive Radar ◽  
Emergency Braking ◽  
Wave Sensors ◽  
Evaluation Board ◽  
High Level ◽  
Automated Highway

<p>In developing countries the growth in the number of motor vehicles is the most significant factor in the rise of road fatalities and injuries. It may be observed that 1.35 million people die every year owing to crashes on road. Most of the accidents can be prevented if the events are detected automatically 1-2 seconds in advance. Texas instruments has come up with a new evaluation board AWR2243 having a single chip operating at 76 to 81Ghz having a FMCW transceiver. This can be instrumental in adaptive cruise control, emergency braking and automated highway driving. A FMCW (frequency modulated continuous wave) obtains the range and velocity from a beat signal. Here millimeter-wave sensors use minimal power consumption to sense range and velocity and the required angle.  The device is interfaced to an external DSP host processor which uses a SYNC_IN signal to start the radar frames. The periodicity of the frames is suitability programmed. The processing provides a high level of performance and flexibility. The signal has three parallel transmit chains and four parallel receive chains. Each receive channel has an LNA, mixer, IF filtering, A2D conversion and decimation. A two- dimensional FFT algorithm is implemented on the host DSP processor.</p>

scholarly journals Benefits, Costs, and Financing of Truck-Only Highway Lanes

2010 ◽  
Author(s):  
David J. Forkenbrock ◽  
Paul F. Hanley
Keyword(s):  
Willingness To Pay ◽  
Interstate Highways ◽  
Passenger Vehicles ◽  
Heavy Trucks ◽  
Insight Into

As increasing amounts of intercity freight are transported by trucking firms, the possibility of constructing truck-only lanes along selected rural Interstate highways warrants consideration. On heavily traveled sections, there is potential for improvements in safety and productivity if such lanes were added. In this paper, we explore the conditions under which investment in truck-only lanes could be considered and what sorts of benefits may accrue to both occupants of passenger vehicles and to operators of heavy trucks. Then we examine the available evidence regarding the nature and magnitude of these benefits to gain insight into the willingness of highway users to pay for these lanes. We conclude that the willingness to pay for truck-only lanes on the part of occupants of passenger vehicles appear to be quite limited and that support for these lanes on the part of trucking firms is likely to depend upon their being allowed to operate longer-combination vehicles (LCVs) on them. Trucking firms could be assessed tolls to travel in truck-only lanes, with these tolls representing some fraction of the increased productivity gained through being allowed to operate LCVs. Finally, we pose several questions that would need to be answered before an investment in truck-only lanes might be considered along a given Interstate segment.

A methodology for assessing eco-cruise control for passenger vehicles

2013 ◽  
Vol 19 ◽  
pp. 20-27 ◽  
Author(s):  
B. Saerens ◽  
H.A. Rakha ◽  
M. Diehl ◽  
E. Van den Bulck
Keyword(s):  
Cruise Control ◽  
Passenger Vehicles
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