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The holding company for Knight Transportation and Swift Transportation reported results for the first quarter of 2018 that reflect “progress” in achieving cost savings for the combined enterprise but also difficulty in finding enough drivers to meet increasing demand for service.

Landstar System reported its best first quarter with revenue jumping 34.2% to $1.05 billion and profits reaching a record $57.5 million, or $1.37 a share, as demand for freight hauling continued to strain truck capacity in the market.

Forward Air Corp. reported better-than-expected results in the first quarter as strong demand and tight truckload capacity boosted expedited less-than-truckload shipping and intermodal services.

Heartland Express reported first-quarter net income of $13.4 million, or 16 cents earnings per share. In comparison, first-quarter 2017 net income was $14 million, or 17 cents per share. Analysts had predicted earnings per share of 11 cents.

Covenant Transportation Group reported first-quarter net income of $4.4 million, or 24 cents per share, compared with a net loss of $39,000 in the same period of 2017.

The timeworn apartment building in Chicago’s Rogers Park neighborhood hardly looks like the corporate headquarters of one of the world’s largest shipping companies. But for a few recent months, that’s essentially what it became — at least as far as the U.S. Postal Service was concerned.

XPO Logistics announced beginning in May customers will be able to track deliveries using Amazon’s Alexa and Google Assistant personal assistant technologies.

Werner Enterprises Inc. on April 19 reported improved year-over-year revenue and earnings for its fiscal first quarter.

Cybersecurity threats are growing in both number and sophis­tication, forcing transportation companies to take additional steps to prevent these attacks from crippling their information technology systems, compromising proprietary data or potentially even disrupting trucks’ electronic controls.

Marten Transport Ltd. reported higher profits and revenue in the first quarter of 2018 as the Mondovi, Wis.-based truckload carrier benefited from lower taxes and stronger demand for freight hauling.