pls make an appointment with my secretary:smile_o01:

we can learn bad. together too:smile_o05:

Sure
I am serious, not in this year, I have a parttime diploma ( 2 years )
You can learn with MM first
I want to learn Japanese as I LOVE travelling to Japan A LOT
I am familiar with Japanese history as well ( 15xx - 1615 ) and (18xx to WW II )

[ 本帖最後由 chefung 於 2009-7-24 12:43 PM 編輯 ]

Different level :smile_42:
Target to be as good as you before 30

yes, i m serious, i want to learn it long time ago, but i afraid i will mix up jap. n korean if i want together:smile_27:

we can wait u, we learn together.
i dunno abt their history, but i love to travel/shop/eat in japan too:smile_o01:

or we can travel to japan together:smile_o05:

Awww, my desk is very near to the door
New Come New Pork.... :')

There may be a hottie sitting next to me too

time for lunch, chat later :smile_o13:

i wish i can hv prize in open competition b4 30:smile_o05:

the optimal goal is to minimize total delay time.
optimization in the real world is complicated, since all signals are timed with one and another down the street.

only length of amber light is determined by maximum traffic speed

average length of car isn't a factor. (however, heavy vehicle is counted when doing Traffic Impact Studies, a report where someone actually go out and count all the cars during peak hours, HV are only considered when designing pavement, but not the signals). Buses are a factor tho.... since they carry more passengers than all other vehicles. (the average passenger in a car is only 1.1 passengers...)

With the TIS, if there's a considerable amount of left turning traffic, advanced signaling is considered.

Other than projected traffic volume and movements, another important parameter is the lane configurations. With everything, they just throw in all the data and configuration in a simulation, which actually is a pretty cool program, as you can actually see the little box representing cars, buses, and trucks moving in and out. (traffic is considered to arrive at a random process with eulers distribution... is it called the euler or seomthing else... the one with the natural log?)

my friend is working in the city's signal dept right now, he actually told me, they're re-optimizing all the traffic signal for pedestrian, as now due to the aging population, they're reducing the average pedestrian walking speed from 1.2m/s to 1.0 m/s. LOL


.... look what u done cherry.... told u i could go on and on about traffic stuff. lol

[ 本帖最後由 futfuk 於 2009-7-24 12:47 PM 編輯 ]