I am interested in computing network indices for a road network for my 
dissertation research.  So far, all I have found is standard 
transportation software that can calculate the shortest route and overall 
length.  I would like to find something that can compute indices of 
cyclomatic number, connectivity, vertex accessibility, shape and others. 
These are mostly based on connectivity matrices, so I was thinking that R 
might be very suitable for this purpose.  They were published in the 
transportation literature 40 years ago, but I have as yet to find any 
automation of these calculations.  Anybody have any ideas? 

Alisa.

***************************************************
Alisa Coffin, MLA, Geographer
USGS, Florida Integrated Science Center
412 NE 16th Ave. Room 250
Gainesville, FL  32601-3701
Tel. (352)372-2571 ext. 27
email: alisa_coffin@usgs.gov
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