Case Studies

Caltrans Plow Lamp Assessment

A new study from the Caltrans regarding different plow lamp characteristics. The study investigates desirable lamp characteristics and the potential benefits of LED lamps.

CaltransPlow Lamp Presentation Nov 2024

Highly Reflective Markings

A new study from the Emergency Responder Safety Institute (ERSI) suggests that the presence of very highly reflective markings may decrease drivers’ ability to see first responders working adjacent to their vehicles. The ERSI, along with study sponsors U.S. Fire Administration and U.S. Department of Justice, encourages emergency responders, leaders, standards development organizations and policy makers to read this study.

Read the Reflective Markings Report

Effectiveness of Green Strobes on Winter Maintenance Vehicles and Equipment

Snow removal and deicing activities are performed by roadway agencies to enhance winter mobility and safety.  Due to slower travel speeds during these operations, low visibility and reduced pavement friction, safety and collision avoidance remain persistent concerns.  To improve the visibility of winter maintenance vehicles, the Michigan Department of Transportation (MDOT) has added green lights to the warning system of winter maintenance trucks (WMTs) since 2016.  This study investigates the degree to which the visibility can be affected by including these green lights.

Read the MIDOT Green Light Study Report

The 50 States of Electric Vehicles: States Promote Transportation Electrification Through Targets and Incentives in 2023

Raleigh, NC – (February 7, 2024) The N.C. Clean Energy Technology Center (NCCETC) has released its “2023 Annual Review and Q4 2023 Update edition of the 50 States of Electric Vehicles.”

The quarterly series provides insights on state regulatory and legislative discussions and actions on electric vehicles and charging infrastructure.

The report finds that a total of 49 states, plus DC and Puerto Rico, took actions related to electric vehicles and charging infrastructure during 2023.  The greatest number of actions related to rebate and grant programs, fees for electric vehicle owners, rate design, infrastructure planning, and targets for state procurement of electric or zero-emission vehicles.

Read the 2023 Annual Review and Q4 2023 Update edition of the 50 States of Electric Vehicles