tungwaiyip.info

home

about me

links

Blog

< July 2010 >
SuMoTuWeThFrSa
     1 2 3
4 5 6 7 8 910
11121314151617
18192021222324
25262728293031

past articles »

Click for San Francisco, California Forecast

San Francisco, USA

 

Highway Network

Have you wonder why a highway is designed like this? Let's say you are driving from a large city A to a large city B. Between them is a mid size city K. Now city A and B are major economic center and travel destinations. City K is none of that. It is yet another non-descript city. Everyone seems to heading to city B. There seems little reason for anyone to stop in city K.

Highway Design 1

The traffic on the highway was free flowing. Yet as you approach city K, local traffic starts to fill up the highways. the It gets to a point when everything comes to a crawl. You curse at the traffic. Then you wonder why must the intercity highway go through city K at all? Why doesn't it just bypass it so that travelers between A and B can have a smoother trip?

Highway Design 2

I have wondered about this for a long time. Now I have a theory. Roads are built for people. Where there are more people traveling, more investment will be made to build roads. This should make pretty good sense.

Now which kind of traffic have higher volume? Intercity traffic between A and B or local traffic in K? Despite your intuition that everyone seems to travel between A and B, there are actually more local traffic in city K. This is demonstrated by the fact that traffic is free flowing between A and B but clogged within city K. Therefore more funding will be allocated to build roads for residents of city K and not a bypass. Since intercity travelers are the minority, they will not be better off than the local residents of city K.

2010.07.10 [, ] - comments

 

 

blog comments powered by Disqus

past articles »

 

BBC News

 

Brexit: More assurances for MPs possible says May (14 Dec 2018)

 

Johnson & Johnson shares drop after asbestos report (14 Dec 2018)

 

New Facebook bug exposed millions of photos (14 Dec 2018)

 

Eleven die and dozens ill after eating rice at Indian temple (14 Dec 2018)

 

Were Taylor Swift fans tracked at her gig? (14 Dec 2018)

 

Money spill on US highway sparks cash grab (14 Dec 2018)

 

Cohen says Trump knew hush money payment was wrong (14 Dec 2018)

 

'Miracle' six-day-old baby survives Ebola (14 Dec 2018)

 

Indiana school shooting: Police say tipster saved countless lives (14 Dec 2018)

 

Shakira: Colombian pop star accused of tax evasion in Spain (14 Dec 2018)

more »

 

SF Gate

 

Apple deepens Austin ties, expands in other tech hotbeds (13 Dec 2018)

 

Bike-share options are rarely available for people with disabilities (13 Dec 2018)

 

Virgin Galactic rocket ship reaches space in test flight (13 Dec 2018)

 

Ship traffic, December 14 (13 Dec 2018)

 

Text message surcharge considered by California regulators (12 Dec 2018)

 

Recession in 2019 looks likely, says Duke survey of chief financial officers (12 Dec 2018)

more »


Site feed Updated: 2018-Dec-14 12:00