引用:
原帖由 futfuk 於 2009-7-24 01:07 PM 發表
ya. i guess u're probably right. let me ask my friend if they consider heavy vehicles when they do signal optimizing next time i see him.
or by subtitution of variable
Letting x = 2y ( x = truck length, y=car length)
Then It now makes me think the length is not that important , provided that truck and normal car have the same speed although this is not true =.=
But as a collective model, this can be reflected in the average speed of traffic blow by average the number of trucks/cars from Transportation registration database