an online library called Transportation Network Test Problems.
http://www.bgu.ac.il/~bargera/tntp/
If you are working on transportation problems, and especially if you are developing algorithms for such problems, you probably asked yourself more than once: where can I get good data?
The purpose of this site is to provide an answer for this question!!!
The site currently contains several examples for the basic traffic assignment problem.
This site is managed by: Hillel Bar-Gera.
if you test networks for the Asymmetric Network Equilibrium Problem,
http://www.ing.unipi.it/~d9762/research/test_networks.html
Here you can get 7 test networks for the asymmetric network equilibrium problem.