First, a screenshot of every level. These bridges should work for both single and convoy trucks. As you progress the levels get increasingly finicky, but the following screenshot show how i did it. If it doesnt work the first time through, do some minor tweaks at the troublesome areas. By getting "Spectacularly Lonely" and "0% Non-Delivery" you will have gotten all preceding achievements of the same kind.
Completing all of these with convoys will net you 9 of the 16 achievements. You will also get "No Hard Feelings" when completing level 11 for a total of 10 achievements.























"No Hard Feelings"


































































We will come back here later.









We will return here aswell.








Anything beyond here is going to take some tweaking

"Entry-Exit Relay Repeater System"

Thank you to @Kenedius for figuring out this method.

"Centrifugal Convoy Adjustment System"

Load up level 42 and remove all any bridge parts you may have placed. Send one truck to get the achievement. 1 or 4 trucks wont make a difference, you will get the achievement no matter what.

Load up level 47, and remove anything you have built at the start and over the pit. Send a single truck and the achievement will get itself.

After finishing all 60 levels, return to level 43 and start the convoy run. A successful run will give you 112 portal pass-throughs. Back out to the lobby periodically to check progress.



If you somehow haven't gotten "You Monster" after completing all levels, you can get it easily on this level as well. Simply remove all bridges in the second room after passing through the first portal.

So there... The game and the guide took ~20 hours over 4 days. Money spent doesn't matter, the Cave Johnson Foundation pays, so go wild with wires. The American Dream is dead. I did this instead of homework, sub to me on P0rnHub at .../users/Commandant_Steele, and Merry Christmas mother****ers.

We'll see if I ever get around to the DLC