Moreover, by assuming that trains pass the straight side of passing stations, the limit speed is considered to be equal to that of the main line.
(2) Calculation results
Tables 4.6-2 and 4.6-3 show the operation hours and minutes and arrival hours and minutes calculated in accordance with the above prerequisites.
Table 4.6-2 New and old operation hours and minutes
Notes: 1. The new operation hours and minutes do not include stopping time. However, because a train stops in nine stations midway, a duration of approx. 6 hrs. and 57 min. is obtained by assuming the train stops for 2 min. for each station.
2. The present operation hours and minutes (*) include stopping hours and minutes.
Though the calculation results are shown in table 4.6-2, a duration of 6 hrs. and 57 min. is obtained by including stopping hours and minutes, reduced 3 hrs. 48 min. and the commercial speed comes to 108.3 km/H between Bangkok and Chiang Mai. The commercial speed in a flat section (between Bangkok and Uttaradit) is set to 120.5 km/H and that in a mountainous section (between Uttaradit and Chiang Mai) is set to 92.5 km/H.
