OSM Route Compare

Extract OSM road-routes from regional extracts with their member ways for analysis.

This package utilizes the msgpack intermediary format to allow chaining of actions and processing a stream of results one by one. For comparing algorithms or rerunning later actions it can be useful to write the intermediary results to disk for reuse. Alternatively, results can be piped on STDOUT/STDIN to the next command.

Installation

Prerequisites

Python This is a Python script, therefore you need a functional Python 3 or later environment on your computer. This program has been tested on Python 3.5. See http://python.org/

Boost.Python Boost is system for providing C++ libraries (like libosmium) to Python

libosmium http://osmcode.org/libosmium/manual.html#building-libosmium

The sparsehash package will also be needed for the following to work.

wget https://github.com/osmcode/libosmium/archive/v2.10.2.tar.gz
tar xzf v2.10.2.tar.gz
cd  libosmium-2.10.2/
mkdir build
cd build
cmake -g INSTALL_PROTOZERO ../
make && make install

pyosmium After libosmium is available on your system, you should be able to use pip to install the python osmium bindings.

pip install osmium

Issues: On my system (OS X 10.10.5 with most packages installed via MacPorts) I had to take two additional steps to fix errors in building osmium with pip.

MacPorts put the boost.python installation in /opt/local/include/boost/ while osmium is looking for it in /opt/local/lib/boost/. Making a symbolic link solved this.
```
 cd /opt/local/lib
 ln -s ../include/boost boost
```

I was seeing the following error:

 In file included from lib/osmium.cc:5:
 In file included from /usr/local/include/osmium/area/assembler.hpp:62:
 /usr/local/include/osmium/tags/filter.hpp:41:10: fatal error: 'boost/iterator/filter_iterator.hpp' file not found
 #include <boost/iterator/filter_iterator.hpp>

I fixed this by ensuring that a BOOST_PREFIX variable was in my shell environment before running pip:

    export BOOST_PREFIX=/opt/local/
    pip install osmium

msgpack curvature makes use of msgpack which you can find at python.org and installed with pip or easy_install:

pip install msgpack-python

Preparation

Once your Python environment set up and the imposm.parser and msgpack-python modules are installed, just download this package and run one of the example commands below from its directory.

git clone https://github.com/adamfranco/osm-route-compare.git
cd osm-route-compare

Usage

Extract each route in an OSM PBF file and attach its member ways (with tags) under a 'ways' key:

bin/osm-route-collect -v --highway_types 'motorway,trunk,primary,secondary,tertiary,unclassified,residential,service,motorway_link,trunk_link,primary_link,secondary_link' vermont.osm.pbf > vermont-routes.msgpack

Inspect the data with the msgpack-reader:

cat vermont-routes.msgpack | msgpack-reader

Check for redundant_names and annotate with name_is_redundant flags, then output as a tab-delimited file:

cat vermont-routes.msgpack | bin/osm-route-analyze flag_redundant_way_names_simple | bin/osm-route-output-tab > vermont-routes.txt