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Questions tagged [map-matching]

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

0
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0answers
38 views

Using low resolution GPS from bikers phones, and mapping to streets?

I am new to GIS. I would like to: map-match GPS points to actual road map The following is for projecting a point to a defined line: # perform interpolation and project point to line pt_interpolate =...
0
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1answer
190 views

Map Matching (snap GPS points road) in ArcGIS (REST API)? [closed]

Does ArcGIS have Map Matching function? (In Google Maps Services it's called "Snap to roads" - https://developers.google.com/maps/documentation/roads/snap) I checked next link, but didn't find ...
0
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1answer
264 views

Identify OSM road ids based on coordinates

I have a trace of GPS coordinates. I would like to get the OSM road ids of the roads that lie on the route defined by the coordinates. I've used OSRM match service to match the coordinates to the ...
1
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0answers
74 views

Aligning or integrating features from two feature classes using ArcGIS Desktop?

I am trying to align two line feature classes (street networks) that have been digitalized differently - see picture. One is more spatially accurate and has the attributes I need (A) and the other one ...
1
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0answers
176 views

Free Map matching benchmark data

I have my own map matching algorithm and I want to compare it's accuracy to some other algorithms. Is there a free trace dataset that has a confirmed match for each trace (ground truth), so I can ...
2
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3answers
523 views

Projecting GPS point to point in closest pgrouting road (map matching)?

I'm quite new to PostGIS and pgRouting. I'm interested in doing a simple map matching. Precisely, finding the closest point in a given OSM road network. I’ve successfully imported the OSM network ...
1
vote
1answer
44 views

User tracking on a defined route

I am having a vehicle route with a set of latitude and longitude values. User need travel on the specified route, If user deviates from the route (Grater than 100 meters), we need to identify in which ...
0
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0answers
78 views

Two geometries not at same place

In the picture1 shown there is a linestring which is Area2 and a buffer of linestring which is Area1. I want to include Area2(linestring in picture) in the buffer but I cannot increase the size of the ...
1
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2answers
312 views

Correcting inaccurate position coordinates

How to project the journey onto the street? The black polyline is inaccurate GPS data received from a mobile device, which positions the user trajectory inside the buildings, when it was actually on ...
4
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1answer
79 views

Matching two types of data (elevation and imagery) which are in different scale?

My problem is that elevation and imagery data I'm getting from USGS is in different scales and is aligned to different grids. I don't want to match it manually in Photoshop. Does QGIS know how to ...
2
votes
3answers
339 views

Join two Shapefiles based on common fields to create new polygon Shapefile?

I have two shapefiles as shown in attached picture: Buildings footprint (polygons) which includes house number and street name beside other fields. Red shapes (polygons) which include house number ...
1
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0answers
125 views

Matching paths based on both GPS pathways and the respective time recorded

I have two database tables containing individual lat-long records of vessels moving around in waters for a given time period: Database A contains a set of records of a particular type of vessel that ...
3
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1answer
356 views

Map matching of one sided road data to two sided road data

we use BOS method (Goodchild and Hunter,1997) for checking the positional accuracy of test map dataset by buffering around the reference dataset and then check for percentage coverage of test dataset ...
3
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2answers
1k views

Find a linestring closest to a given linestring

There must be already a solution to this problem - let's say we have five different linestrings. They might intersect or not. Given a sixth linestring, how do we find which one of the original five ...
2
votes
1answer
190 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 ...
2
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0answers
488 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: http://anitagraser.com/2013/10/19/a-routing-script-for-the-processing-...
6
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0answers
1k 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
139 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
436 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" ...
-1
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1answer
2k 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 ...
2
votes
1answer
695 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
118 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: ...
2
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0answers
155 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
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1answer
541 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
2answers
854 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 ...
1
vote
1answer
506 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
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1answer
3k 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 ?...
11
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2answers
3k views

Map-matching GPS points to the road network!

I am quite new to Postgres and PostGIS. I am trying to do a simple map-matching (or path-inference if you wish) of some GPS points. I am using postgres(postgis). I have a table in my database ...
0
votes
2answers
1k views

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

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 A, ...
2
votes
1answer
420 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 b1,...
2
votes
1answer
2k 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
2k 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 ...
7
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5answers
5k 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 recording,...
-2
votes
1answer
2k 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?
5
votes
2answers
2k 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
376 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
5answers
12k 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 ...
44
votes
13answers
24k views

Map matching links and ideas? [closed]

I'm using OpenStreetMap 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 ...