Learning using traffic simulatorsD

'Traffic simulator used': 'SUMO 0.12.3', 'net/route generator used': 'VERGILIUS.VMF'

VMF use the TIGER file in 2006 (later versions are shapefiles, not text, don't know how to use) to generate topology and flow files for SUMO, which simulates traffic.

The TIGER file has road format like this:

11206  40087991 A  Worcester                     St    A31                                                                        25250270272643026430
73830073830020042001 -71706031+42224956 -71706159+42225103
11206  40016687 A  I-90                                A15                                                                        25250270272643026430
73820073830020062004 -71706031+42224956 -71716298+42223170

dont know what those numbers mean yet.

unknown unknown unknown       street name       unknown                                                       unknown
unknown           coordinates of one end       coordinates of the other end

Lots of information are missing, such as number of lanes, DIRECTION OF ROADS (in the TIGER file, some roads are two-way, and some are one-way), but VMF only takes TIGER files. So what comes from VMF is far from the real thing.  Number of lanes and directions need to be filled manually.

But, at this stage, I only want to simulate I-90 rather than an area.  So, I can just spend a day to make a simplified TIGER file formatted file by hand and feed to VMF.