Transportation is the movement of anything from one location to another.
18
votes
8answers
3k views
Alternatives to pgRouting
I was wondering if there are any alternatives to pgRouting tools.
Thinking about it for a bit, I think the only alternative is to use R or RPY to do the analysis.
Basically I'm trying to solve ...
22
votes
7answers
2k views
Representation of network flows
This is a sample transportation network flow I've done a year ago based on 26 zones.
For a project I'm working on now, I need to represent the flows over 1,000 zones with directionality.
Any ...
19
votes
4answers
1k views
Curved point-to-point “route maps”
I have recently been looking at airlines web pages that display their routes departing a certain city to all other cities they service. I would like to be able to create similar curved routes between ...
7
votes
5answers
670 views
Buffers of public transportation transit times
I'd like to be able to create buffers/zones/rings of transit times using Denver's public transportation system. For an example of what I'm talking about, check out triptropnyc.com - I don't need it ...
13
votes
3answers
2k views
How can I optimize pgrouting for speed?
I am using pgrouting on a postgis database created through osm2pgrouting. It performs very good on a limited dataset (3.5k ways, all shortest path A* searches < 20 ms).
However since I have ...
7
votes
3answers
217 views
Custom, low-level representation of streets and traffic rules
I'm new to GIS, and I'm still trying to gain an understanding of what can be represented in the various GIS files. Very generally I know(/think) that you can represent points, that lines, polylines, ...
3
votes
1answer
302 views
Using OSM data, pgRouting, and dummy data to develop an origin/destination travel matrix
Further to my previous question I was wondering if it is possible to add dummy node data without to do routing analysis.
ISSUE
I have a polygon layer that represents zonal attributes
I created a ...
4
votes
1answer
368 views
Trip travel matrix on OSM data
Here's my situation:
I'm modeling travel logistics
I have 1,000 nodes, on my road network
I'd like to generate the minimum driving time distance between all these nodes
This process will be done 24 ...
2
votes
1answer
144 views
Create an optimized point layer derived from a road layer so that the driving distance between each point is x
Consider a classic state-wide or country-wide roadway network. I want to create a point layer, where each point is on the roadway network. This point layer will have each point separated by its ...
