I am involved in a research project that uses historic transport data for England and Wales mostly in the nineteenth century. One particular problem concerns coaching data where all that is known is ...
I'm creating a real time traffic application. I read the AVL car data from a web service and insert the records in a PostgreSQL table Then a trigger calculates the closest link and if there is a ...
I am working on a transportation (linear programming) problem. Each potential solution also requires checking the distance of approx 20,000 routes with 5 to 15 nodes per route. Calculating the ...
I'm building a public transit service in South Africa, and I initially started the project on PHP and MySQL. I've managed to get far with the simple stack, with: Routing algorithm in PHP Data ...
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 ...
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 ...
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 ...