HOUSTON — Trimble has acquired some of the biggest names in the trucking technology sector over the past several years. Now the global technology firm is taking steps to more closely unite those businesses, including PeopleNet, TMW Systems, ALK Technologies and 10-4 Systems, to provide an end-to-end platform under the Trimble brand.

Bryan Berg drives a semi with a 13-speed transmission, and he’s been double-clutching and shifting gears in his rig for 30 years. He’s not about to start driving a truck that shifts automatically.

The turmoil at Tesla Inc. reached a fever pitch, as the news that two senior executives are leaving Elon Musk’s electric-car maker emerged just hours after he smoked marijuana during an hours-long interview streamed live online.

WASHINGTON — The small role Congress currently plays in policy for autonomous vehicle technology could eventually slow, or impede, progress for states and firms testing such systems, a key House transportation authorizer warned on Sept. 5.