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WASHINGTON — A panel of transportation experts debated several proposals to rescue the nearly insolvent Highway Trust Fund but offered little hope that Congress, facing a May 31 deadline to pass a transportation bill, would approve a long-term solution.    

WASHINGTON — The biggest challenges facing infrastructure public-private partnership proposals are in persuading public officials and taxpayers to accept some level of financial and possibly environmental risk, and in convincing public employees they won’t lose their jobs, a panel of P3 supporters said at a May 11 “Infrastructure Week” event.

The Department of Transportation’s Inspector General is conducting an audit into concerns about the “timeliness and effectiveness” of the Federal Motor Carrier Safety Administration’s reviews of carriers that pose a greater risk.

President Obama on May 8 nominated Greg Nadeau to be administrator of the Federal Highway Administration.

DALLAS — Automotive supplier Denso has developed a new high-amperage alternator for the medium- and heavy-duty truck market that the company said is smaller, lighter and more efficient.

DALLAS — A large national propane supplier has introduced a first-ever Class 8 propane-diesel blended fuel system certified by the U.S. Environmental Protection Agency as emissions-complaint.

DALLAS — Frito-Lay North America has reduced its diesel fuel consumption significantly since it began adding natural gas, electric and high-efficiency diesel trucks to its fleet over the past 10 years, a company executive said.