Transportation Radio

Bernie Wagenblast

Interviews with transportation newsmakers by transportation journalist Bernie Wagenblast.

  1. 6D AGO

    How Texans are Protecting Monarch Butterfly Migration Paths

    In this episode, Darlene Goehl – research engineer and research group lead at the Texas A&M Transportation Institute – explains how new infrastructure being developed in Texas can help prevent thousands of monarch butterfly deaths as they migrate across busy roads in North America. Episode Notes In this podcast episode, Darlene Goehl joins ‘The Stream by AASHTO’ to discuss the joint work of the Texas A&M Transportation Institute (TTI) with the Texas Department of Transportation in building monarch flight diverters or MFDs – a series of tall, mesh barriers placed along busy roads that motivate the butterflies to fly above the roadway, well above vehicles traveling on the highway below. Researchers have noted sharp declines in monarch populations, specifically during their migration periods in the fall. In some years, researchers found that nearly 3 percent of the monarch’s fall migratory population were lost after being struck by vehicles traveling on roads; this number represents about half of the population decline in a given year. Goehl discusses the importance of monarch butterflies to the ecology and cultural symbology of the southern U.S. and northern Mexico, the role of transportation, and how TTI identifies “hot spots” for monarch roadkill. From there, Goehl explains the implementation and feasibility of MFDs in Texas and how the project will fare into the future. This podcast series is part of the AASHTO Environmental Management technical service program operated by the American Association of State Highway and Transportation Officials. It explores a wide array of environmental topics that affect state departments of transportation and the infrastructure programs they oversee.

    22 min
  2. 12/04/2025

    Electrified Roadway Testing in Indiana

    Episode Summary In this episode of The Stream by AASHTO, George McCue, Emerging Mobility Assistant Director at the Indiana Department of Transportation, and Dr. Steven Pekarek, Professor of Electrical and Computer Engineering at Purdue University, discuss a new electric vehicle project that seeks to create a wireless, electrified roadway that charges vehicles as they drive across the road. The pair discuss the science behind the project, the partnership between the university and Indiana DOT, and what it could mean for the future of electric vehicles. Episode Notes This podcast series is part of the AASHTO Environmental Management technical service program operated by the American Association of State Highway and Transportation Officials. It explores a wide array of environmental topics that affect state departments of transportation and the infrastructure programs they oversee. In this episode, George McCue with the Indiana DOT and Dr. Steven Pekarek from Purdue University are interviewed by Bernie Wagenblast regarding an electric vehicle charging project they are conducting under the auspices of the Joint Transportation Research Program. The project is testing a dynamic wireless power transfer or “DWPT” system, whereby transmitter coils underneath the road can send energy to an electric vehicle without ever having to plug it in – a power transfer system that is similar to wireless charger technology for smart phones. In West Lafayette, Indiana, Indiana DOT and Purdue have successfully tested a quarter mile of highway on U.S. Route 231 and U.S. Route 52 equipped with over 80 transmitter coils that carried charge to the test vehicle. On the podcast, McCue and Pekarek discuss the multi-faceted aspects of the DWPT project, including the economic viability of the project’s technology, potential size limits of vehicles able to use the road, and working on public roadways that can see thousands of drivers daily. Both stress that this DWPT project could significantly expand the range of electric vehicles on U.S. highways.

    29 min
  3. 10/31/2025

    Mountain Lion Conservation in California

    Episode Summary In this episode, Dan Medeiros – senior field representative for The Conservation Fund – discusses mountain lion conservation efforts in California as it relates to transportation infrastructure construction, motorist and wildlife safety, along with helping improve ecosystem linkages.  Episode Notes In this episode, Dan Medeiros joins The Stream by AASHTO to discuss his work with The Conservation Fund – a 40-year-old organization that purchases land across the US to preserve wildlife habitat – and its efforts in California to support the safety and growth of mountain lion populations and their habitats.  Medeiros discusses how mountain lion conservation efforts interconnect with transportation infrastructure needs; especially how large barriers and quick-moving cars are two of the main culprits behind mountain lion deaths. He also points to specific examples, including the death of “54M” – a mountain lion tracked by that The Conservation Fund that was tragically killed by a vehicle when trying to cross a major highway. Medeiros also explains the importance of stakeholder input on large infrastructure projects that involve mountain lion populations, including state departments of transportation, local residents, and private organizations. He provides input on the importance of quality data collection, advocacy, and conversation when working with big stakes. This podcast series is part of the AASHTO Environmental Management technical service program operated by the American Association of State Highway and Transportation Officials. It explores a wide array of environmental topics that affect state departments of transportation and the infrastructure programs they oversee.

    22 min

Ratings & Reviews

5
out of 5
15 Ratings

About

Interviews with transportation newsmakers by transportation journalist Bernie Wagenblast.