Update the MATSim network file for Mount Alexander Shire

[dhixsingh]

The Mount Alexander Shire MATSim network network file used by all tests and in the EES ui is here.

The task is to:

• [x] Extract two OSM networks from OpenStreetMap; one detailed for the Mount Alexander Shire region, and another much larger one only with major roads but capturing all cities in the region including Bendigo, Ballarat, Shepperton, Geelong, Melbourne. Then combine them to get a single OSM. The network merging is described in the MATSim user guide in section 7.2.1.
• [ ] Post-process the combined file to fix free speeds and bad lengths etc. (will require a new script).
• [ ] Remove the speed adjustments done in code here.
• [x] Build the Mount Alexander Shire MATSim network file again with sensible Australian defaults using NetworkGenerator.

Liaise with @chamindab and @rmit-s3560603-karthikey-surineni since parts of this task overlap with what needs to be done for the Hawkesbury network as well as the Melbourne network.

[dhixsingh]

---------- Forwarded message ---------- From: Nagel Kai Date: 12 December 2017 at 10:45 Subject: Bradford To: Dhirendra Singh

Dear Dhirendra,

I should have sent this email before the other one.

They are always taking the "long" route, even before the fire is there. See below.

Reason is that your "secondary" road have speed 16.66 (=60km/h), while your tertiary roads have speed 27.77 (=100km/h). (The "unclassified" roads, which again one level below that, have 12.5 (=45km/h).)

We had originally not really defined the base road characteristics of our OSM reader, assuming that they would vary from region to region anyways. As is typical, everybody was and is just using the default values. Some of us have now tried to put in some more reasonable default values. Maybe you want to re-import your networks at some point, with the newest MATSim OSMReader.

I have actually seen more weirdnesses in your network, such as links with speed infinity (am setting those to a speed of 9999999999. in MATSimModel to make the router work).

Am "correcting" it in various ways inside matsimmodel, but maybe at some point you may want to clean up your input data.

Best wishes

Kai

[dhixsingh]

Should also change the scenarios/tests to link to a single network file so that it is then easier to update it in the one place. Right now each scenario saves its own copy. Raised #9 for this.

[dhixsingh]

Commit b9cc923145f1afff19cd4c17ae76318d128a9af2 contains the updated network file mount_alexander_shire_network_20180206.xml.gz, that was created as follows:

osmosis --rb file=AU.pbf --bounding-box top=-36.8758 left=143.8344 bottom=-37.2762 right=144.5533 completeWays=true --used-node --wb mas-allroads.osm.pbf

osmosis --rb file=AU.pbf --bounding-box top=-33.184 left=138.208 bottom=-39.215 right=151.776 --tf accept-ways highway=motorway,motorway_link,trunk,trunk_link,primary,primary_link --used-node --wb mas-bigroads.osm.pbf

osmosis --rb file=mas-allroads.osm.pbf --rb file=mas-bigroads.osm.pbf --merge --wx mas-merged-network.osm 

mvn exec:java -Dexec.mainClass="io.github.agentsoz.util.NetworkGenerator" -Dexec.args="-i ./scenarios/mount-alexander-shire/mas-merged-network.osm -o ./scenarios/mount-alexander-shire/mount_alexander_shire_network_20180206.xml"

Tests have not been updated to use this yet, as the link IDs have all changed and the network change event files used by tests will no longer work. Probably easiest is to just remove the network change event files, and after visual inspection, accept the new results one by one.

[dhixsingh]

Commit 91ed4565a56b94204da1c693f3ecc55e5cad6cbc contains as updated file mount_alexander_shire_network_2018.xml.gz with the Mount Alexander Shire MATSim network. There is also a new script create-mas-network.sh that automates the process.

[dhixsingh]

Note the OpenStreetMap recommendation for tagging in Australia.

Also, the current recommended maxspeed defaults for Australia are reproduced below.

highway=motorway - 100 km/h usually, 110 km/h only where sign-posted
highway=primary - 80 to 90 km/h
highway=secondary - 50 to 70 km/h
highway=tertiary - 50 km/h
highway=residential - 50 km/h, usually 40 km/h in school zones

These should be reflected in NetworkGenerator that currently has:

https://github.com/agentsoz/bdi-abm-integration/blob/91ed4565a56b94204da1c693f3ecc55e5cad6cbc/util/src/main/java/io/github/agentsoz/util/NetworkGenerator.java#L90-L104

[dhixsingh]

Since 2804a23fd7d1c2531adcab73cee9886b0e765279 Maldon100WithEmergencyVehiclesTest uses the new network. Will raise a separate issue for updating other tests as needed.

[dhixsingh]

Attached are some views of the final network. Colours represent freespeed:

• 110 km/h is dark blue
• 90-100 km/h is light blue
• 60-80 km/hr is yellow
• 50 km/h and lower is red

Here is the full extent of the new network:

Here is the same network zoomed into the area of detail:

Some issues in the underlying OSM network are evident. In the zoomed view, the patch of blue roads in the top left (west of Bendigo), suggests inconsistencies in mapping data--those roads have been tagged with a speed limit of `100 km/h whereas other likely similar nearby roads are not. The extent of the problems is not clear and requires further investigation.

Mount Alexander Shire Municipal Fire Management Planning Committee is aware of the OSM issues, and till such that that we can commit resources to investigating these further, we will accept this network for ongoing work.