How do those in charge determine the number a freeway will be called, such as the 405, the 210 etc.
2006-12-12 12:40:56 · 7 answers · asked by melowd 2 in Travel ➔ United States ➔ Other - United States
Main interstates are more or less in numerical order from one side of the USA to another. East-west routes are even numbers, north-south routes are odd numbers. Three-digit interstates are extentions of main interstates in or around a city. Even-numbered ones (like 210, 405, where the first number is even) are bypasses, odd-numbered ones are called spurs (like 110, where the first number is odd), which are routes that only connect to the main one (110 to the 10, for example) on one end. Bypasses (like the 205 from the 5) connect to the main route on both ends.
2006-12-12 12:49:27 · answer #1 · answered by Mark S 5 · 1⤊ 0⤋
In the US, most highways that travel N to S are odd numbered. Those that go E to W are even numbered. The lower numbers start in the West w/1 and 101, working their way east to settle on the 95. Same from S to N. Now sheck this out, if it is an interstate, then it only goes up to 2-digits. When the go around a city, you add a 2 in front and 4 for the ones that go way around to connect the loop.
2006-12-12 12:55:53 · answer #2 · answered by The Face 3 · 0⤊ 0⤋
In California it could be any random way...Probably Caltrans was involved in the decision...
2006-12-12 12:45:24 · answer #3 · answered by Olive 4 · 0⤊ 1⤋
good question
2006-12-12 12:42:28 · answer #4 · answered by Anonymous · 0⤊ 2⤋
they will do whatever they can
2006-12-12 12:42:09 · answer #5 · answered by Anonymous · 0⤊ 2⤋
not sure
2006-12-12 12:42:02 · answer #6 · answered by ? 6 · 0⤊ 2⤋
http://www.dot.ca.gov/hq/tsip/HSEB/products/named_freeways_2004.pdf#xml=http://dap1.dot.ca.gov/cgi-bin/texis/webinator/search/pdfhi.txt?query=criteria+to+name+a+freeway&db=db&pr=www&prox=page&rorder=500&rprox=500&rdfreq=500&rwfreq=500&rlead=500&sufs=0&order=r&cq=&id=457101867
2006-12-12 12:56:11 · answer #7 · answered by gt577 3 · 0⤊ 0⤋