[pgrouting-users] TIGER/Line ZLevel

Stephen Woodbridge woodbri at swoodbridge.com
Mon Feb 8 10:40:35 EST 2010

On 2/7/2010 5:24 PM, John Hennessy wrote:
> I am trying to use the TIGER/Line shapefiles for routing.  I have 
> managed to import the data and generate routes.  Unfortunately it 
> looks like this data set does not include ZLevel information so I am 
> getting routes that would have me drive off overpasses etc.  Anyone 
> have a solution to this?

There is no solution to this problem that I'm aware of and I have worked 
extensively with the Tiger data over the last 10-12 years. The data does 
not exist in the Tiger data set, unfortunately. You will also note that 
one-way road information does not exist, so you are likely routing down 
the wrong side of dual lane digitized interstates also.

-Steve W

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