My advise to you is; "Don't sweat the small stuff". Idle times are subject to many variables during your shift. Road construction, weather, traffic, etc., all effect your idle time. Management will always push you on that but as long as you try to do a good job you should be fine. Always remember that SAFETY is your #1 priority. If you are in situations where you must move slow for a while then that's eggs-ackly what you do. Be safe and management will get used to your idle time and you won't get stuck trying to explain an accident by hurrying so you could lower your idle time.