I see a lot of people making coasters with stations that have a number of gates that do not match the number of seat rows in the cars of the trains they are running. this is a minor detail and doesn't affect the track itself, but doing it right is all part of working with the NL editor.
I got the following figures from a post Buster made at another site a long time ago, I converted them from metric into imperial figures:
The minimum length of a station, for it to have gates, is 23.1 feet (7 meters). For each gate that you wish to have for your coaster, add to that, 3.3 feet (1 meter). Here's a simple table for total station lengths:
4 gates: 36.4' (11 meters)
5 gates: 39.6' (12 meters)
6 gates: 42.9' (13 meters)
7 gates: 46.2' (14 meters)
8 gates: 49.5' (15 meters)
9 gates: 52.8' (16 meters)
10 gates: 56.1' (17 meters)
11 gates: 59.4' (18 meters)
12 gates: 62.7' (19 meters)
13 gates: 66.0' (20 meters)
14 gates: 69.3' (21 meters)
15 gates: 72.6' (22 meters)
16 gates: 65.9' (23 meters)
17 gates: 78.2' (24 meters)
18 gates: 82.4' (25 meters)
19 gates: 85.8' (26 meters)
20 gates: 89.1' (27 meters)
These figures work no matter what track style you use.
Cut and paste them into wordpad or something similar and print them up for easy reference.