"Associates a sorted list of user or vehicle positions to the road network on a digital map."

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2
votes
1answer
23 views

How can I match Geolife traces using TrackMatching or similar tools?

I am working on route prediction and I decide to use realistic trace of moving object, I have choose geolife dataset it is composed of 278 users and every user has its trips presented in GPS or GPX I ...
0
votes
0answers
18 views

Associating old GPS trackpoints to the new ones on graphhopper/map-matching

Is it possible to associate my ex gps points to the new trace ? For the moment I have only 51 new trk seg for 2387 entries, but I need to know where my entries gone. The original file: ...
2
votes
0answers
52 views

Point layer to route

So, in QGIS I'm trying to apply the script "Point layer to route". (See this website for a general idea about the script: ...
3
votes
0answers
163 views

Using R to map matching GPS data? [closed]

I have many vehicles GPS data points, which consist of "timestamp, longitude, latitude, fuel consumption and distance" and the data is OSM(open street map) based. I want to match the data points to ...
1
vote
1answer
75 views

Calculating emissions from points in road network using ArcGIS for Desktop?

I have GPS data (X,Y, speed, CO2 and fuel consumption) for one truck for one trip. I want to import them in ArcGIS and to join them with the road network (map matching). I was thinking of applying ...
1
vote
1answer
74 views

Graphhopper Map-Matching looses time attribute

I try to use the Graphhopper Map-Matching. My GPX source file looks something like: <?xml version="1.0" encoding="UTF-8"?> <gpx version="1.0" creator="GPSBabel - http://www.gpsbabel.org" ...
0
votes
0answers
10 views

How to determine the end of a route from data which come constantly

In data from 24h containing coordinates and timestamp I need to determinate short routes when device was moving in the destination point, coordinates can be near to each other but I can't find point ...
-2
votes
1answer
294 views

Plotting points into segments on roads exactly with ArcMap?

I have a set of data (see the table below) which has an origin lat and long and destination lat and long with speed. I just want to plot lines between the origin and destination, and color code them ...
1
vote
1answer
180 views

Map matching a stream of GPS points to possible bus routes & C# map matcher

I have streams of GPS points that are transmitted from a device aboard a bus in real time. I would like to use these points to infer which route the bus is following. I have routes stored as GPS point ...
2
votes
0answers
33 views

match noisy GPS data to closest linestring in road network [duplicate]

I have some noisy GPS data(Points) that they are not exactly on the road because of the noise. But I want to match them to the closest road linestrings. How to do this in PostgreSQL? Data: ...
1
vote
0answers
69 views

Make a line from a set of GPS points close to a specific GPS point with PostGIS

I have to develop a map-matching algorithm. At the moment I only match GPS points with the closest road segment. I'm looking for a way to compare the directions between a GPS point and a road to ...
0
votes
0answers
27 views

how to use rubbersheet in arcGIS for my matching results

I developed an algorithm for matching road network instances. I need to visualize the matching results where an arrow shows the mapping between two instances. I have seen it in many papers but I don't ...
0
votes
1answer
124 views

Is there a way to transform a node OSM point into the reference GPS system of a car?

I have a car with a GPS (WGS84) and a camera (who shot the road) fixed on it. I would like to know is there is a way to get the transformation from a OSM node to the GPS cartesian coordinate fixed on ...
1
vote
1answer
214 views

Matching GPS points to the road network

I am a newbie in Postgres and Postgis and I am trying to do a matching of GPS points to the road network. I need to find closest road from a shapefile and take speed attribute from it. I am using ...
0
votes
1answer
195 views

Getting time taken for the edge using GraphHopper map matching

Here is the GPX data I am giving to GraphHopper Map matching library: private List<GPXEntry> getList() { List<GPXEntry> sampleEntries = new ArrayList<GPXEntry>(); GPXEntry ...
2
votes
0answers
583 views

open-source code for the map matching algorithm

For map matching of the GPS data to the network data, there is a algorithm from Schussler, N. & Axhausen, K. (2009a). Is this algorithm released under open-source license ? Where can I find this ...
6
votes
2answers
615 views

Map-matching GPS points to the road network!

I am quite a newbie in Postgres and Postgis so please be simple and clear :) I am trying to do a simple map-matching (or path-inference if you wish) of some GPS points. I am using postgres(postgis). ...
0
votes
2answers
277 views

Mapping raw GPS data to Openstreetmap's Node/Way/Relation

So, I have a bunch of raw GPS data points which constitute trips. I want to add semantic information to those data points. For example I'd like to be able to say that a trip consisted of taking street ...
1
vote
1answer
89 views

Comparing compass bearings

I have several compass bearings: bTrue = 190° b1 = 250° b2 = 100° b3 = 170° b4 = 90° I want to compare b1 - b4 and find out how close they are to bTrue. So bTrue is 100%. How much percent is then ...
2
votes
1answer
371 views

Map Matching GPS to Road Network [duplicate]

I'm working on a project for which I have GPS points and I would like to extract the sequence of roads related to those points. I know that this is called "map-matching" and that there is a load of ...
2
votes
1answer
1k views

Is there an alternative for ERDAS IMAGINE AutoSync (eventuelly for QuantumGis)?

I had the possibility to work with a Demo-Version of the ERDAS IMAGINE module AutoSync. I have different geo-rasters (i.e. geoTIFFs) produced by UAV photography and which have to be matched the best ...
6
votes
4answers
2k views

Matching GPS tracks

I'm looking for a proper way to process multiple GPS tracks (so time ordered list of lat/lon points) and match/classify that segments, that are covered by multiple tracks: So it's not about ...
-2
votes
1answer
817 views

Making Map Matching Points to Roads [duplicate]

I'm having some trouble while map matching these points for some streets. Could you lend me a hand?
4
votes
2answers
718 views

How to calculate the azimuth of a line of a multilinestring in PostGIS?

I have two spatially enabled tables in PostgreSQL with a geometry in each: First table is with POINT type, second is with MULTILINESTRING. I need to calculate the azimuth of the LINESTRING part of a ...
0
votes
1answer
230 views

How to map and color localities (provinces) with an external CSV using Quantum GIS

I use a Swiss shape file map (called PLZO_PLZ) available on http://www.cadastre.ch/internet/cadastre/fr/home/products/plz/data.html (ZIP file Shape LV03) PLZO_PLZ contains a column called PLZ which ...
1
vote
4answers
5k views

How to match GPS collected data to routes on Google Maps?

I am using Google Maps to implement a GPS Monitoring system of data collected from vehicles. My problem occurs when the points and lines do not match with the route and cut through other streets and ...
32
votes
13answers
13k views

Different approaches for map matching : links / ideas?

I'm using Open Street Map and its vectorial road network and I'd like to implement a map matcher algorithm. Currently I'm able, for each GPS position, to retrieve the nearest road segment and ...