How can I add hangzhou/jinan/newyork map to the enviroments

[rodrickcui]

How can I add new scenarios to the signal.yaml

[mansourhas]

Hi,
Recently completed this process for a segment of Nairobi:

• exporting the area from OpenStreetMap,
• trimming and cleaning non-road features,
• converting the OSM extract into a SUMO network,
• hand-defining signal phases per intersection (for some reason the library relies on a particular way of defining intersections).

Run multiple simple trips to check if there is any dead roads or misconfigured traffic lights. and keep debugging until you are satisfied with the results.

I will try to check if i have noted down the details of what i have done exactly.

please if you figured an easier way to do this let me know.

thanks

[jault]

The steps @mansourhas gave are necessary at a minimum for a traffic network in SUMO. Defining the signal phases per intersection for signal.yaml is a tedious process at present. A script might be possible for networks with mostly homogenous intersections to autogenerate the signal config. I need to work on updating the previous environment configuration documentation, but it is mostly the same as before Env config.

In the example below phase_pairs defines the full action set ordering for all 3 signals. pair_to_act_map then defines a mapping for each signal to the corresponding global-action list. For example/note:

• Signal 360086's first action is action-index 4 in phase_pairs ['W-W', 'E-E'].
• The 3rd action for 360086 is different from the 3rd action for 360082.
• Signal 360082 has fewer actions than the other signals.
• phase_pairs defines more actions than required (a mistake)

You can avoid this setup if all signals have the same number and order of actions (the config for grid4x4 was generated via script). Action order is taken from the net.xml file defining the network for SUMO. tlLogic in the net.xml file is the portion which defines actions in SUMO (this may be a helpful example). The traffic movement directions ('E-E', 'S-W', 'N-W') are read like "Eastbound through traffic", "Southbound right turn", and "Northbound left turn".

The lane_sets defines which lanes serve which traffic movement directions for each signal. This is needed to determine the traffic headed for an adjacent intersection.

downstream defines the adjacency graph of intersections, signal 360082 is East of 360086 and therefore any lane_sets of 360086 for "*-E" will be moving traffic toward signal 360082. This is needed because not all traffic networks will connect adjacent signals with a single road.

I doubt I've sufficiently explained it here, so please let me know any questions, they will be helpful in writing useful documentation for this. There are probably ways to simplify the configuration or automate parts of it, but I haven't gotten to that yet.

'cologne3': {
  'phase_pairs': [ ['S-S', 'N-N'], ['S-E', 'N-W'], ['S-S', 'S-E'], ['N-N', 'N-W'], ['W-W', 'E-E'], ['W-S', 'E-N'], ['E-E', 'E-N'], ['W-W', 'W-S'], ['E-S', 'E-N'] ],
  'pair_to_act_map': {
    'cluster_2415878664_254486231_359566_359576': { 4: 0, 5: 1, 0: 2, 1: 3 },
    '360086': { 4: 0, 5: 1, 0: 2, 1: 3 },
    '360082': { 4: 0, 5: 1, 1: 2 },
  },
  'cluster_2415878664_254486231_359566_359576': {
    'lane_sets': {
      'S-W': [ '319261593#16_0' ],
      'S-S': [ '319261593#16_1', '319261593#16_0' ],
      'S-E': [ '319261593#16_1' ],
      'W-N': [ '-241660955#3_0' ],
      'W-W': [ '-241660955#3_0', '-241660955#3_1' ],
      'W-S': [ '-241660955#3_1' ],
      'N-E': [ '241660957#0_0' ],
      'N-N': [ '241660957#0_0', '241660957#0_1' ],
      'N-W': [ '241660957#0_1' ],
      'E-S': [ '200818108#0_0' ],
      'E-E': [ '200818108#0_0', '200818108#0_1' ],
      'E-N': [ '200818108#0_1' ]
    },
    'downstream': {
      'N': null,
      'E': '360086',
      'S': null,
      'W': null
    }
  ,
    fixed_timings: [ 4, 2, 4, 2, 4, 2, 4, 2 ],
    fixed_phase_order_idx: 0,
  },
  '360086': {
    'lane_sets': {
      'S-W': [ '4045329#5_0' ],
      'S-S': [ '4045329#5_0' ],
      'S-E': [ '4045329#5_0' ],
      'W-N': [ '-241660955#10_0' ],
      'W-W': [ '-241660955#10_1', '-241660955#10_0' ],
      'W-S': [ '-241660955#10_1' ],
      'N-E': [ '-41910185#2_0' ],
      'N-N': [ '-41910185#2_0' ],
      'N-W': [ '-41910185#2_0' ],
      'E-S': [ '241660955#7_0' ],
      'E-E': [ '241660955#7_0', '241660955#7_1' ],
      'E-N': [ '241660955#7_1' ]
    },
    'downstream': {
      'N': null,
      'E': '360082',
      'S': null,
      'W': 'cluster_2415878664_254486231_359566_359576'
    }
  ,
    fixed_timings: [ 4, 2, 4, 2, 4, 2, 4, 2 ],
    fixed_phase_order_idx: 0,
  },
  '360082': {
    'lane_sets': {
      'S-W': [ ],
      'S-S': [ ],
      'S-E': [ ],
      'W-N': [ ],
      'W-W': [ '-241660955#17_1', '-241660955#17_0' ],
      'W-S': [ '-241660955#17_1' ],
      'N-E': [ '-130160207#0_0' ],
      'N-N': [ '-130160207#0_0' ],
      'N-W': [ '-130160207#0_0' ],
      'E-S': [ '241660955#14_0' ],
      'E-E': [ '241660955#14_0', '241660955#14_1' ],
      'E-N': [ '241660955#14_1' ]
    },
    'downstream': {
      'N': null,
      'E': null,
      'S': null,
      'W': '360086'
    }
  ,
    fixed_timings: [ 4, 2, 4, 2, 4, 2, 4, 2 ],
    fixed_phase_order_idx: 0,
  },
  'management': {
    'top_mgr': [ '360082', '360086' ],
    'bot_mgr': [ 'cluster_2415878664_254486231_359566_359576' ]
  },
  'management_neighbors': {
    'top_mgr': [ 'bot_mgr' ],
    'bot_mgr': [ 'top_mgr' ]
  }
}