Usually twice a year here Atlanta puts a moratorium on our rental tractors so Monday's, Tuesday's, & Wednesday's we start rolling tractors. This means you clock in and your assigned tractor (tractors are double utilized) is not available. So we get to wait in the "truckers lounge" (conference room or breakroom) until one comes available. Longest I have waited was 3 hours. To make matters worse, some of our tractors can go to California, some can't; some can make the haul to Las Vegas, some can't. All tractors are not the same here because of CARB requirements and fueling needs like LNG. Eventually Atlanta capitulates and we get rentals and more tractors ordered. If they were smart they would have all of our tractors CA legal. Other than that we sit around waiting for loads to be done but that's about it.
Turnarounds have delays due to poor planning between dispatch, usually at the origin. Some drivers compound that by not taking personal time but that isn't always the cure-all it seems to be. If you want a load back by a certain time and want me to be ready to turn & burn you might not want me to go on meal because that means I'm not moving for an hour. I can always push the 30 minutes to the last possible moment if necessary to save your service commitment but if you want give & take don't harass me about TA time when it goes in my favor.
Feeders only has two speeds: slow and stop.