Tagged Questions

Transportation is the movement of anything from one location to another.

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5
votes
3answers
373 views

Calculating order of points along a line

I have a shape file with transportation lines and another file with all bus stops along each line (with an attribute which links stops with specific lines to which they belong). I need to calculate ...
6
votes
1answer
851 views

Retrieve speed and number of Lanes in Google Maps API, OSM data or any other stream?

Is it possible to return the posted speed and number of lanes of a highway segment using Google Maps API, OSM data, or any other stream (paid for or free)?
6
votes
2answers
489 views

Calculate stop times/distances of transport lines - tools and procedure?

I need to calculate stop times of bus lines (extrapolation) I have: Shape file with all stops shape file with control points where bus time was taken Shape file with all bus routes csv file with ...
2
votes
1answer
131 views

Finding intermediate points and speed over a segment

I have a dataset which is in the form of ( Time , Car ID, Speed at that moment, Lat,Long) and I need to do some machine learning on the data to answer the following questions : Best route from ...
12
votes
3answers
861 views

Recommendations for road maintenance management (on a small scale)

I am in a road association and we maintain our own 3 mile dirt road. In doing research on best practices for maintenance I discovered that other organizations use some mapping/GIS programs to help. ...
7
votes
4answers
380 views

Examples of web based Overweight/Oversize load permit routing on County Roads

Does anyone know of any US counties that have set up a web based overweight/oversize load permit routing system, preferably one that leverages GIS? I know many state DOT's are doing this, but I don't ...
10
votes
2answers
696 views

Realtime traffic data provider(s)

What services provide realtime (or daily-updated) basic traffic informations for Western Europe ? For example, traffic.com/Navteq provides such data to Bing Maps for US/Canada and Microsoft suggests ...
5
votes
1answer
104 views

Non-Research Transportation Raster applications

My experience with rasters is pretty basic. 99.95% of what I do involves vector and transportation modelling. In research, there are numerous transportation applications using rasters and imagery ...
7
votes
2answers
639 views

Help on creating a presentation for Highschool students

I was commissioned to do a presentation on GIS (well it'll mostly focus on transportation GIS) for about 50 high school students. I'm looking for funny graphs / images that I can include in this ...
28
votes
4answers
4k 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 ...
4
votes
1answer
585 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 ...
7
votes
3answers
251 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, ...
29
votes
8answers
3k 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 ...
8
votes
5answers
975 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 ...
4
votes
2answers
186 views

Transportation representation Standard on roads

Is there a GIS standard to display transportation specific information in GIS databases. The information I'm interested in are: Road Directionality Center turning lanes Ramps / Bridges / Over or ...
23
votes
10answers
5k 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 ...