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Connected and Automated Vehicles (CAVs) Using Eco-Friendly Traffic Optimization Systems Can Reduce Fuel Consumption up to 15 Percent and Waiting Time Up to 85 Percent at Equipped Intersections.

METHODOLOGY The ECoTOp system co-optimizes traffic signal and vehicle dynamics to maximize the throughput from all phases in the cycle and minimize the total energy consumption of each CAV in all the…
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Date Posted
05/30/2023

Geofencing-Enabled Truck Routing to Protect Disadvantaged Communities Reduced NOx Emissions by 74 percent.

METHODOLOGY First, the eco-routing potential from the perspective of a carrier hauling truck fleet operating between different origin-destination pairs was explored in the form of expected cost-…
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Date Posted
07/01/2022

Field-Tests of Connected Vehicle Implementation in California Reveals 6.63 Percent and 6.6 Percent Reduction in Fuel Consumption and CO2 Emissions, Respectively.

METHODOLOGY The “Innovation Corridor” was set up as a testbed that can be used for CV testing. All of the traffic signal controllers along this corridor were upgraded to be compatible with Society of…
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Date Posted
03/24/2022

UTC Case Study Estimates That Automatic Emergency Braking Technology Can Improve Energy Economy by up to 34.6 Percent and Reduce Pollutant Emissions by 22.5 Percent.

METHODOLOGY A research team led by the Pacific Southwest Region University Transportation Center (UTC) developed a structured database that fused various datasets including real-world traffic state…
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Date Posted
02/21/2022

Freeway Services Patrols: A State of the Practice

Consider the pros and cons of performance bonds as they may not be appropriate for all types of procurements.

Project stakeholders should consider the advantages and disadvantages of requiring performance bonds and other risk mitigation requirements such as bid bonds (1) because they may not be appropriate…
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Date Posted
01/11/2006

Consider issuing separate awards for specific project components when procuring divergent technologies, equipment, or services.

In some cases, it may be advantageous for two or more agencies to partner when procuring similar technologies or equipment. For example, multiple agencies procuring mobile data terminals (MDTs) for…
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Date Posted
01/11/2006

Exercise careful planning in preparation for issuing an RFP to help mitigate cost, schedule, and performance risks.

To the extent possible, procuring agencies should conduct due diligence when issuing an RFP to help mitigate cost, schedule, and performance risks. Actions that can be taken at the pre-bid phase…
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Date Posted
01/11/2006