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Hundreds of truck drivers descended on Washington Monday to protest high diesel prices, WRC-4 television reported on its Web site.

The Montana Department of Transportation is exploring whether the state can impose limits on large-truck traffic on state Highway 35, the Associated Press reported.

PRINCETON, N.J. — ALK Technologies will add a Web-based version of its PC Miler mapping and routing software to the company’s family of truck navigation products this year, ALK’s chief technology officer said.

The Illinois Department of Transportation said the number of highway construction work zone fatalities in the state has fallen by more than half in the past four years, the Associated Press reported.

WASHINGTON — The government should not only stop filling the Strategic Petroleum Reserve, but also consider releasing oil to help lower the price of diesel fuel, Dave Berry, chairman of the American Trucking Associations’ environmental and energy policy committee, told Congress last week.

Truckload carriers are slashing capacity at the highest rate in a decade in an effort to bring supply and demand into balance as fuel prices skyrocket and demand withers, according to industry experts.

An unprecedented wave of exports, mostly to Russia, has cushioned a downturn in the Class 8 used-truck business, which has been hurt by high fuel prices and a weak freight market, according to industry executives.

U.S. retail fuel prices continued to soar into uncharted territory last week, as the average price of diesel jumped another 8.4 cents to $4.143 a gallon and gasoline gained 11.9 cents to $3.508, the Department of Energy reported.

New home sales fell to a 17-year low in March, the Commerce Department said Thursday.