otp-travel-time-matrix

This repository aims to provide a reproducible example of how to build an Origin-Destination matrix using OpenTripPlanner (OTP). The Python script still can be improved, for example to increase speed/efficiency of the code. Contributions are welcomed !

Input

• An Open Street Map of the region in .pbf format
• GTFS dataset
• The OTP java application .jar file
• Jython standalone application .jar file
• A .csv file with long lat of the points i

Output

• A .csv file with the travel time between pairs of points. It looks something like this:

GEOID    GEOID    travel_time
    1        1            60
    1        2           861
    1        3          2234
    2        1           861
    2        2            42
    2        3          3032
    3        1          2235
    3        2          3040
    3        3            92

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This repository should help you build a travel time matrix in 4 simple steps

Python Version

Step 1: Install Jython 2.7 in your computer

Here you find the executable jar for installing Jython

Step 2: Download files to your folder

Most of the files you need are in this repository alredy. The other files you can download from here:

• jython-standalone.jar

• otp-0.19.0-SNAPSHOT-shaded.jar

• portland_oregon.osm.pbf

Step 3: Build Graph.obj

Open your Command Prompt and run this line to set the directory where you've saved the files

cd C:\Users\rafa\Desktop\otp-travel-time-matrix

Now run this line to build the Graph.obj

java –Xmx10G -jar otp-0.19.0-SNAPSHOT-shaded.jar --cache C:\Users\rafa\Desktop\otp-travel-time-matrix --basePath C:\Users\rafa\Desktop\otp-travel-time-matrix --build C:\Users\rafa\Desktop\otp-travel-time-matrix

Step 4: Run the Python script

c:\jython2.7.0\bin\jython.exe -J-XX:-UseGCOverheadLimit -J-Xmx10G -Dpython.path=otp-0.19.0-SNAPSHOT-shaded.jar test.py

Lisp Version

Step 1: Get ABCL

1. Go to http://abcl.org, download the binary distribution and put it somewhere you can get to it.

2. Then go to https://www.quicklisp.org and download "quicklisp.lisp".

3. Get quicklisp: java -jar abcl-bin-1.3.3/abcl.jar --load ~/quicklisp.lisp --eval '(quicklisp-quickstart:install)' --eval '(quit)'

Step2: Download files

As in the python version, except the Jython jar file is unnecessary.

Step3: Build Graph.obj

As in the pyhon version

Step4: Run the Lisp Script

java -d64 -XX:MaxPermSize=1g -XX:+CMSClassUnloadingEnabled -Xmx10G -XX:-UseGCOverheadLimit -Djava.library.path=. -cp otp-0.19.0-SNAPSHOT-shaded.jar:abcl-bin-1.3.3/abcl.jar org.armedbear.lisp.Main --load ~/quicklisp/setup.lisp --load test.lisp --eval '(quit)'

This code is inspired by @laurentg's code but it tries to achieve a different output, providing a travel time matrix. @laurentg has also made important contributions to this repository, to which I am grateful.

More information about how to automate OTP here.