feat(bsag): add readme

bsag/readme.md

@@ -0,0 +1,44 @@
+# GTFS source file
+
+* download [onebusaway-gtfs-transformer-cli](http://developer.onebusaway.org/modules/onebusaway-gtfs-modules/1.3.4-SNAPSHOT/onebusaway-gtfs-transformer-cli.html)
+
+* download GTFS data
+```
+wget -o ./wget-log-connect-ls-top-dhid.txt -O ./connect-ls-top-dhid.zip http://www.connect-info.net/opendata/gtfs/connect-nds-toplevel-dhid/<TOKEN>
+```
+
+* generate GTFS extract
+```
+mkdir bsag
+java -jar -Xms20G -server onebusaway-gtfs-transformer-cli-1.3.4-20150503.062227-12.jar --transform=./connect-ls-top-dhid-retain-bsag.txt connect-ls-top-dhid.zip ./bsag
+```
+
+* archive GTFS extract
+```
+zip -r connect-ls-top-dhid-retain-bsag.gtfs.zip bsag/
+```
+
+# OSM source file
+
+* download osm extract for lower saxony
+```
+mkdir osm && cd osm
+rm wget-log-niedersachsen
+rm niedersachsen.osm.pbf
+wget -o ./wget-log-niedersachsen -O niedersachsen-latest.osm.pbf http://download.geofabrik.de/europe/germany/niedersachsen-latest.osm.pbf
+```
+
+* get bounding box as CSV from [here](https://boundingbox.klokantech.com/)
+```
+8.415555,52.893073,9.034566,53.269949
+```
+
+* generate OSM extract for bsag
+```
+```
+
+* later
+```
+mkdir otp && cd otp
+mv ../connect-ls-top-dhid-retain-bsag.gtfs.zip .
+```