With g-forces being one of the most important aspects of track design, it's very disappointing how unresponsive the design interface is in giving you that data. Having to actually wait for your test coaster to get dragged up the lift-hill, and make it all the way to the section of track your working on to see the effects of any changes, only to make a tweak, and then wait for all of that to happen again is a huge pain. The game should be continuously doing invisible, time-accelerated test runs on your track to be able to give you simulation data in real-time as you make changes. (And, of course, it should be able to do this while the game is paused.)
Having done that, there is still the matter of displaying the data, which is another huge pain. Each axis of g-forces can only be seen one at a time after selecting it from a menu, and in a way that obscures the track you're working on. My idea is this: display all 3 g-force axis as the lengths of 3 arrows extending from points just above the track at regular intervals and at local peaks, with local peaks shown by the peaked axis being thicker than the others. Numeric values, especially of local peaks, can also be displayed.
There would still be a lot of room for improvement in coaster designing, but with these changes, the interface will be doing a lot more to pull it's weight in the design process.
Having done that, there is still the matter of displaying the data, which is another huge pain. Each axis of g-forces can only be seen one at a time after selecting it from a menu, and in a way that obscures the track you're working on. My idea is this: display all 3 g-force axis as the lengths of 3 arrows extending from points just above the track at regular intervals and at local peaks, with local peaks shown by the peaked axis being thicker than the others. Numeric values, especially of local peaks, can also be displayed.
There would still be a lot of room for improvement in coaster designing, but with these changes, the interface will be doing a lot more to pull it's weight in the design process.