there are 5 types of timelapses,
1. you speed up a normal video.
2. every DSLR now adays has the option that it makes the timelapse for you.
3. you use a intervelometer to make a timelapse. you take hundreds of RAW images and blend them together in PHotoshop or lightroom and make a timelapse video out of it.
4. there a hyperlapse
5. last is the picture timelapse, you take bunch of pictures and blend them together into one picture.
the picture we are having the argument over is a long exposure picture, its not a timelapse picture. may be TStephens is refering to the motion in the picture. we can make a timelapse picture out of moving traffic but that will be time consuming and waste of space in the memory card, its easier to just take a 20 or 30 seconds long exposure picture of the moving traffic.