In the app, we have a place to put how many miles per hour we want the app to calculate its info on. That's great, if you put in an accurate number. When I first started, I was figuring everything at 60 mph. I figure, truck is governed at 65, so 60 should be a good number to work with. It wasn't until about week 3, that I started to take a hard look at why I seemed to always be running behind. The first thing i did, was to sit down and calculate how many miles per driving hour i was actually doing. As it turned out, over the previous 8 days, my avg was 53.2 miles per hour, and the previous 3 days, it was 54.6 mph. Then it dawned on me, that we don't always drive under perfect conditions. That weather, traffic, the weight of the load, and the route your given all work against you.
Since that day, the first thing I do, is find my avg mph from the last 8 days, and the last 3 days, and use the lower number in the app. As a consequence of doing this, I haven't been late to any more appointments, and I feel more comfortable telling my dm what I can realistically do with any given load, because using that average, helps to take into account things like weather and traffic.
As a side benefit, it also gives me a goal to improve upon. Bringing that avg up, and forces me to pay even stricter attention to my clock, and driving habits, because it shows me if I am driving not just safely, but also profitably. And that has had a huge impact on my checks, and my stress level.
It would be nice if the app had a place to track those two figures for people like me, so we can be more accurate with our times, instead of just guessing. Not to mention that the formula I can up with is a lot to type into a calculator, and I am not that good at setting up spreadsheets to make on of my own to do the calculations for me. Maybe it could be added to the same page as the hos recaps, or a page on it's own. I have looked for an app that will do this for me, but I haven't found any, anywhere. So in the meantime, its pen, paper, and a calculator for me.
I will gladly share the formula I use with anyone who wants it.