Brief description:

This project represents a script which takes specific input GNSS data and transfers them into OSM format. This data should be bus routes, therefore it works with roads, excluding any forms of ways a bus is unable to drive on.

After the OSM format in the input trajectory is achieved, chosen algorithm will detect specific bus lines - repeating trajectories. These are then saved in convenient form to be further visualized or processed.

What the script needs as an input:

1. base map in the OSM format
   • sources for download: OpenStreetMap data - for example via Overpass API (overpass-turbo)
2. properly formatted input GNSS data of a bus driving repeating trajectories

Guide for basic run:

Manual will be available in a video format to make it clear and simple to understand and follow. Click to watch video manual.

Naming:

bus line = represents the actual bus line found either by the developed algorithm or a reference of itself

track alternative = one of two tracks from which the final algorithmic bus line is determined by

map vs. input representation = map always refers to the general broad area; input is bound to the given input GNSS data

node vs. OSM representation/format = node representation is a list of tuples or list of lists, where each of the items are tupled or listen latitude and longitude nodetype is therefore for instance [[lat1, lon1], [lat2, lon2]...]; the OSM representation is always a dictionary, a json/geojson file which can be visualized in JOSM and contains the OSM features and data

bus line finding algorithm vs. method for comparing trajectories = methods for comparing trajectories (gestalt, levenshtein, myratio_calc) and bus line finding algorithms (gestalt8, manual_trackfinder1, levenshtein2 ... )

normalisation = getting the input GNSS data enriched by the OSM format as well as changing their coordinates according to the most probable coordinates situated nerby belonging to the OSM system

crossroad representation vs. fine representation = crossroad representation stands for either nodes or OSM format contaning only those coordinates, that are a part of a real crossroad; fine representation stands for either nodes or OSM format containing as many as possible nodes used to describe certain road