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Bikesy Server

This is how to setup this version of graphserver to work with OSM data to create a bike routing server. The instructions below create a server running 9 instances of graphserver to do bike routing on a variety of hill and safety scenarios for the San Francisco Bay Area. Modify as needed.

You can see a live implementation and more documentation here: http://bikesy.com

Server setup

EC2 setup

If you want to use Amazon EC2 to host graphserver, here are the steps

  • Create an EC2 instance "amzn-ami-pv-2016.03.1.x86_64-ebs (ami-8ff710e2)"
  • Create a 60 gig volume in the same zone as your instance
  • Mount the volume to a directory sudo mkfs -t ext4 /dev/sdf sudo mkdir /mnt/bayarea sudo mount /dev/sdf /mnt/bayarea

Enable Swap (optional)

sudo mkswap /dev/xvdg
sudo swapon /dev/xvdg

Setup prereqs

sudo yum install git gcc gcc-c++ python-setuptools python-devel python-pip java-1.8.0

Get graphserver and install with python wrappers

git clone https://github.com/brendannee/bikesy-server
cd bikesy-server/pygs
sudo python setup.py install

Install libspatialindex

mkdir ~/downloads
cd ~/downloads
wget http://download.osgeo.org/libspatialindex/spatialindex-src-1.8.5.tar.gz
gunzip spatialindex-src-1.8.5.tar.gz
tar -xvf spatialindex-src-1.8.5.tar
cd spatialindex-src-1.8.5
./configure --prefix=/usr
make
sudo make install
sudo /sbin/ldconfig

Install rtree

sudo pip install RTree

Install osmosis

mkdir ~/downloads/osmosis
cd ~/downloads/osmosis
wget http://bretth.dev.openstreetmap.org/osmosis-build/osmosis-latest.zip
unzip osmosis-latest.zip
chmod a+x bin/osmosis

Data Preparation

Download OSM data

Download data for the US states you want

cd /mnt/bayarea
wget https://download.geofabrik.de/north-america/us/california-latest.osm.bz2
bunzip2 california-latest.osm.bz2

Merge OSM data if needed

If you are supporting more than one state, you'll need to merge it.

~/downloads/osmosis/bin/osmosis --rx california-latest.osm  --rx nevada-latest.osm --merge --wx california-nevada.osm

Cut down the OSM data to a bounding box

Choose your bounding box - for example:

Bay Area: 38.317,-123.029 : 37.3064,-121.637 38.064476, -122.769606 : 37.459723, -121.611723

The Mission: 37.772,-122.428 : 37.733,-122.4

San Francisco: 37.9604,-122.5772 : 37.6746,-122.1151

Lake Tahoe: 39.368232, -120.345042 : 38.750276, -119.659482

Use Osmosis to cut out just the OSM data within your bounding box. Be sure to use the completeWays=yes option for bounding-box

For now, San Francisco has been set up to reject certain surface types, but Tahoe has been set up to accept certain surface types. Ways without a Surface tag are included in the former case but excluded in the latter case.

Bay Area:
~/downloads/osmosis/bin/osmosis --read-xml california-latest.osm --bounding-box left=-122.769606 bottom=37.459723 right=-121.611723 top=38.064476 completeWays=yes --tf accept-ways highway=* --tf reject-ways surface=dirt,grass,clay,sand,earth,pebblestone,ground,grass_paver,unpaved,woodchips,snow,ice,salt --write-xml bayarea.osm

The Mission:
~/downloads/osmosis/bin/osmosis --read-xml california-latest.osm --bounding-box left=-122.428 bottom=37.733 right=-122.4 top=37.772 completeWays=yes --tf accept-ways highway=* --tf reject-ways surface=dirt,grass,clay,sand,earth,pebblestone,ground,grass_paver,unpaved,woodchips,snow,ice,salt --write-xml bayarea.osm

Lake Tahoe:
~/downloads/osmosis/bin/osmosis --read-xml california-nevada.osm --bounding-box left=-120.345042 bottom=38.750276 right=-119.659482 top=39.368232 completeWays=yes --tf accept-ways highway=* --tf accept-ways surface=paved,asphalt,concrete,wood --write-xml tahoe.osm

Make an osmdb file

gs_osmdb_compile bayarea.osm bayarea.osmdb

gs_osmdb_compile tahoe.osm tahoe.osmdb

or

python pygs/graphserver/ext/osm/osmdb.py bayarea.osm bayarea.osmdb

Get DEM data from the USGS

mkdir elevation

a) Download highest quality DEM available from http://nationalmap.gov/3DEP/index.html, in GridFloat format

  • click "Download Data"
  • select "Coordinates" and enter in your bounding box and click "Draw AOI"
  • Unselect everything except 1/3 arc-second DEM, in GridFloat format
  • It will give you several downloads, corresponding to different sections of the requested area. Download them all.

b) Unzip the gridfloats into their own folder

Compile a profiledb file

Pass in each of the .flt files you downloaded above that cover every part of the area that you'd like route on.

Bay Area:
python ~/bikesy-server/misc/tripplanner/profile.py bayarea.osmdb bayarea.profiledb 10 elevation/04507044/04507044.flt elevation/06932766/06932766.flt elevation/26582513/26582513.flt elevation/55614802/55614802.flt elevation/59476301/59476301.flt elevation/77723440/77723440.flt elevation/82362642/82362642.flt elevation/94430404/94430404.flt

Tahoe:
python ~/bikesy-server/misc/tripplanner/profile.py tahoe.osmdb tahoe.profiledb 10 elevation/n39w120/floatn39w120_13.flt elevation/n39w121/floatn39w121_13.flt elevation/n40w120/floatn40w120_13.flt  elevation/n40w121/floatn40w121_13.flt

Optional: run create.py script to automate the following steps

sudo python ~/bikesy-server/misc/tripplanner/create.py

Fold profiledb and osmdb into a compiled graph

Specify the weights you'd like to apply to each link type

Bay Area: gs_compile_gdb -o bayarea.osmdb -p bayarea.profiledb -s "motorway:100" -s "motorway_link:100" -s "trunk:1.2" -s "trunk_link:1.2" -s "primary:1.1" -s "primary_link:1.1" -s "secondary:1" -s "secondary_link:1" -s "residential:1" -s "living_street:1" -s "steps:3" -s "track:1.1" -s "pedestrian:1.1" -s "path:1.1" -s "cycleway:0.9" -c "lane:0.9" -c "track:0.9" -c "path:0.9" -b "designated:0.9" -b "yes:0.9" -r "bicycle:0.9" -a "private:100" -a "no:100" bayarea.gdb

Tahoe Low: gs_compile_gdb -o tahoe.osmdb -p tahoe.profiledb -s "motorway:100" -s "motorway_link:100" -s "trunk:1.2" -s "trunk_link:1.2" -s "primary:1.1" -s "primary_link:1.1" -s "secondary:1" -s "secondary_link:1" -s "residential:1" -s "living_street:1" -s "steps:3" -s "track:1.1" -s "pedestrian:1.1" -s "path:0.8" -s "cycleway:0.8" -c "lane:0.9" -c "track:0.9" -c "path:0.8" -b "designated:0.9" -b "yes:0.9" -r "bicycle:0.9" -a "private:100" -a "no:100" tahoe.gdb

Tahoe High: gs_compile_gdb -o tahoe.osmdb -p tahoe.profiledb -s "motorway:100" -s "motorway_link:100" -s "trunk:1.5" -s "trunk_link:1.5" -s "primary:1.4" -s "primary_link:1.4" -s "secondary:1.2" -s "secondary_link:1.2" -s "residential:.9" -s "living_street:.9" -s "steps:2" -s "track:.9" -s "pedestrian:1" -s "path:0.5" -s "cycleway:0.5" -c "lane:0.6" -c "track:0.6" -c "path:0.5" -b "designated:0.6" -b "yes:0.6" -r "bicycle:0.6" -a "private:100" -a "no:100" tahoe.gdb

-s - specifies an OSM highway key http://wiki.openstreetmap.org/wiki/Key:highway -c - specifies an OSM cycleway key http://wiki.openstreetmap.org/wiki/Key:cycleway -b - specifies an OSM bicycle key http://wiki.openstreetmap.org/wiki/Key:bicycle -r - specifies an OSM route key http://wiki.openstreetmap.org/wiki/Key:route -a - specifies an OSM access key http://wiki.openstreetmap.org/wiki/Key:access

Edit WalkOptions members in ch.py

For each set of contraction hierarchy graphs, edit the WalkOptions numbers in ch.py to suit your preferences, then: python ~/bikesy-server/misc/tripplanner/ch.py ./bayarea

python ~/bikesy-server/misc/tripplanner/ch.py ./tahoe

Create the shortcut cache

python ~/bikesy-server/misc/tripplanner/shortcut_cache.py ./bayarea

python ~/bikesy-server/misc/tripplanner/shortcut_cache.py ./tahoe

Setup config file

cd ~/bikesy-server/misc/tripplanner
cp config-example.json config.json

Edit config.json as needed.

Setup the web server

Install and configure Nginx

sudo python -m pip install uwsgi

sudo yum install nginx

sudo vi /etc/nginx/nginx.conf

Find the location / section, and change it to as follow:

location / {
    include uwsgi_params;
    uwsgi_pass 127.0.0.1:10080;
}

Start nginx

sudo service nginx start
sudo chkconfig nginx on

Enable Logs

sudo touch /var/log/uwsgi.log
sudo chmod 777 /var/log/uwsgi.log

Run the routesever

cd ~/bikesy-server/misc/tripplanner && uwsgi --yaml ./routeserver.yaml

To see what is going on, tail the logs:

tail /var/log/uwsgi.log -f

Sample API call

http://ec2-52-39-88-148.us-west-2.compute.amazonaws.com/?lat1=38&lng1=-121&lat2=37.9&lng2=-121

Manage the web server

Stop the routeserver

sudo service nginx stop
sudo kill -INT `cat /tmp/uwsgi.pid`

or

killall -s INT uwsgi

Review Logs

/var/log/nginx/error.log
/var/log/uwsgi.log

Create Bike facility overlays from OSM file

These steps are going to depend on your region
Set the OSM_REGION_FILE as needed:
```
export OSM_REGION_FILE="bayarea.osm"
export OSM_REGION_FILE="tahoe.osm"
```
Also, for tahoe, change `bicycle=designated,yes` to only `bicycle=designated`. The OSM data in Tahoe has been cleaned such that all ways that we want to include on the map are tagged with `bicycle=designated.`

```
export ALLOWED_BICYCLE_TAGS="desginated,yes"
export ALLOWED_BICYCLE_TAGS="designated"

Class I

osmosis --read-xml $OSM_REGION_FILE --tf accept-ways highway=path --tf accept-ways bicycle=$ALLOWED_BICYCLE_TAGS --tf reject-relations --used-node --write-xml class1-1.osm &&
osmosis --read-xml $OSM_REGION_FILE --tf accept-ways highway=cycleway --tf reject-relations --used-node --write-xml class1-2.osm &&
osmosis --read-xml $OSM_REGION_FILE --tf accept-ways highway=footway --tf accept-ways bicycle=$ALLOWED_BICYCLE_TAGS --tf reject-relations --used-node --write-xml class1-3.osm &&
osmosis --read-xml class1-1.osm --rx class1-2.osm --rx class1-3.osm --merge --merge --wx class1.osm

Class II

osmosis --read-xml $OSM_REGION_FILE --tf accept-ways highway=residential,unclassified,tertiary,secondary,primary,trunk --tf accept-ways cycleway=lane --tf reject-relations --used-node --write-xml class2-1.osm &&
osmosis --read-xml $OSM_REGION_FILE --tf accept-ways highway=residential,unclassified,tertiary,secondary,primary,trunk --tf accept-ways cycleway:left=lane --tf reject-relations --used-node --write-xml class2-2.osm &&
osmosis --read-xml $OSM_REGION_FILE --tf accept-ways highway=residential,unclassified,tertiary,secondary,primary,trunk --tf accept-ways cycleway:right=lane --tf reject-relations --used-node --write-xml class2-3.osm &&
osmosis --read-xml class2-1.osm --rx class2-2.osm --rx class2-3.osm --merge --merge --wx class2.osm

Class III

osmosis --read-xml $OSM_REGION_FILE --tf accept-ways lcn=yes --tf reject-ways bicycle=designated --tf reject-ways highway=footway --tf reject-ways cycleway=lane --tf reject-relations --used-node --write-xml class3-1.osm &&
osmosis --read-xml $OSM_REGION_FILE --tf accept-ways highway=residential,unclassified,tertiary,secondary,primary,trunk --tf accept-ways cycleway=shared_lane --tf reject-ways cycleway=lane --tf reject-relations --used-node --write-xml class3-2.osm &&
osmosis --read-xml class3-1.osm --rx class3-2.osm --merge --wx class3.osm

Convert .osm files to .geojson

Install osmtogeojson:

npm install -g osmtogeojson

Convert files:

osmtogeojson class1.osm > class1.geojson &&
osmtogeojson class2.osm > class2.geojson &&
osmtogeojson class3.osm > class3.geojson

Optionally, minify the files

Install simplify-geojson and minify-geojson:

npm install -g simplify-geojson minify-geojson

Simplify and minify the files:

cat class1.geojson | simplify-geojson -t 0.00001 > class1.simple.geojson &&
minify-geojson -w "name" -c 5 class1.simple.geojson &&
cat class2.geojson | simplify-geojson -t 0.00001 > class2.simple.geojson &&
minify-geojson -w "name" -c 5 class2.simple.geojson &&
cat class3.geojson | simplify-geojson -t 0.00001 > class3.simple.geojson &&
minify-geojson -w "name" -c 5 class3.simple.geojson

These files will contain extraneous point features in addition to the lines we want. Open each file in QGIS, selecting only line layers and ignoring the points. Then right click each layer and export it to a new geojson file. Save the new geojson file into the data directory so that it can be served to the frontend, with name classN.geojson.

Credits

Brendan Martin Anderson https://github.com/bmander wrote graphserver, the underlying system that handles the bike routing.

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