adds road pricing input

[fredshone]

@sarah-e-hayes WIP.

I've added a road pricing input. So you can now add road pricing as a requirement to a handler. eg: requirements = ["road_pricing"]

The road pricing is as follows, note that this is an awkward combination of dicts and list (the cost start times are not necessarily in order). In simulation agents should enter a single toll zone in the morning (links 2-3 and 3-4). In the afternoon agents should enter two toll zones (4-3 and the 2-1).

    self.resources['road_pricing'].links == {
        '2-3': [
            {'start_time': '00:00', 'end_time': '06:00', 'amount': '0.0'},
            {'start_time': '06:01', 'end_time': '10:00', 'amount': '10.0'},
            {'start_time': '10:01', 'end_time': '16:00', 'amount': '3.0'},
            {'start_time': '16:01', 'end_time': '19:00', 'amount': '10.0'},
            {'start_time': '19:01', 'end_time': '23:59', 'amount': '3.0'}
        ],
        '3-4': [
            {'start_time': '00:00', 'end_time': '06:00', 'amount': '0.0'},
            {'start_time': '06:01', 'end_time': '10:00', 'amount': '10.0'},
            {'start_time': '10:01', 'end_time': '16:00', 'amount': '3.0'},
            {'start_time': '16:01', 'end_time': '19:00', 'amount': '10.0'},
            {'start_time': '19:01', 'end_time': '23:59', 'amount': '3.0'}
        ],
        '4-3': [
            {'start_time': '00:00', 'end_time': '06:00', 'amount': '0.0'},
            {'start_time': '06:01', 'end_time': '10:00', 'amount': '10.0'},
            {'start_time': '10:01', 'end_time': '16:00', 'amount': '3.0'},
            {'start_time': '16:01', 'end_time': '19:00', 'amount': '10.0'},
            {'start_time': '19:01', 'end_time': '23:59', 'amount': '3.0'}
        ],
        '2-1': [
            {'start_time': '00:00', 'end_time': '06:00', 'amount': '0.0'},
            {'start_time': '06:01', 'end_time': '10:00', 'amount': '10.0'},
            {'start_time': '10:01', 'end_time': '16:00', 'amount': '3.0'},
            {'start_time': '16:01', 'end_time': '19:00', 'amount': '10.0'},
            {'start_time': '19:01', 'end_time': '23:59', 'amount': '3.0'}
        ]
    }

[fredshone]

times are now guaranteed to be ordered

[sarah-e-hayes]

Hi @KasiaKoz - would you be able to review some changes Fred and I have made to Elara? The idea is to process the plans output in conjunction with the road pricing input file to work out which agents have paid tolls, how much and on which links.

The logic is essentially:

• For each car trip in an agent's plan, pull out the list of links they traversed
• Compare these to the links that are declared as toll routes in the road pricing xml
• If they are entering a toll link from a non-tolled link, they'll incur a charge. If they are entering a tolled link from another toll link they won't incur a second charge, since we consider that to be one toll road. If they break for an activity within a tolled area, they'll be charged again when they start their next trip (marginal case but present in test-town!)
• Keep a log of all events where agents are charged
• Aggregate by agent and also subpopulation and output three files (full log and two summaries)

Fred's added in a sample roadpricing.xml file and made the changes needed to the elara underbelly (inputs.py and config.py) and I've added in a new plan handler and some corresponding unit tests.

Thank you!