{
  "version": 1,
  "day": "2026-08-21",
  "count": 36,
  "headcodes": [
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    "4L47",
    "6E43",
    "6O54",
    "6M78",
    "6M09",
    "6M09",
    "6V86",
    "6C11",
    "6V25",
    "6M25",
    "6U85",
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    "6Q59",
    "6Y48",
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    "6A50",
    "6M37",
    "6E11",
    "4M88",
    "6V18",
    "6V06",
    "6E26",
    "6E11",
    "0M58",
    "4L68",
    "6E77",
    "6M61",
    "6V81",
    "6V81",
    "6V55",
    "6V81"
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    {
      "key": "6O54_St_Albans",
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      "location": "St Albans",
      "file": "6O54_St_Albans.mp4",
      "start": 0.0,
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    },
    {
      "key": "6M78_Doncaster",
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      "file": "6M09_Wingfield.mp4",
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      "key": "6M09_Derby",
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    {
      "key": "6V86_Banbury",
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      "location": "Banbury",
      "file": "6V86_Banbury.mp4",
      "start": 0.0,
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    {
      "key": "6C11_Severn_Tunnel",
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      "location": "Severn Tunnel",
      "file": "6C11_Severn_Tunnel.mp4",
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      "key": "6V25_Banbury",
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      "key": "6M25_Keighley",
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      "location": "Keighley",
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      ],
      "location": "Basingstoke",
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      "key": "0Z49_Peterborough",
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        "57306 \"Branch Line Society\""
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      "location": "Peterborough",
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      "key": "6M51_Bredon",
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      "locos": [
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      "location": "Bredon",
      "file": "6M51_Bredon.mp4",
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      "key": "6Q59_Banbury",
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      "location": "Banbury",
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      "key": "6Y48_Basingstoke",
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        "69013"
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      "location": "Basingstoke",
      "file": "6Y48_Basingstoke.mp4",
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      "key": "6M01_Chesterfield",
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      "locos": [
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      "location": "Chesterfield",
      "file": "6M01_Chesterfield.mp4",
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      "key": "6A50_Newbury",
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      "location": "Newbury",
      "file": "6A50_Newbury.mp4",
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      "key": "6M37_Keighley",
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      "key": "6E11_Banbury",
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      "location": "Banbury",
      "file": "6E11_Banbury.mp4",
      "start": 0.0,
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      "key": "4M88_Wingfield",
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      "file": "4M88_Wingfield.mp4",
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      "key": "6V18_Newbury",
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      "key": "6V06_Watford",
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      "key": "6E26_York_North",
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      "location": "York North",
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      "key": "0M58_Watford",
      "headcode": "0M58",
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      "location": "Watford",
      "file": "0M58_Watford.mp4",
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      "key": "4L68_Watford",
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      "key": "6E77_Keighley",
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      "key": "6V81_Chesterfield",
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      "location": "Chesterfield",
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      "key": "6V81_Wingfield",
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      "locos": [
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    {
      "key": "6V55_Bredon",
      "headcode": "6V55",
      "locos": [
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      ],
      "location": "Bredon",
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      "key": "6V81_Derby",
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  "built_at": "2026-08-22T08:00:20+00:00",
  "length_mode": "adaptive",
  "target_seconds": 180.0,
  "snip_seconds": 4.916666666666667,
  "start_seconds": 0.0,
  "video": "freight.mp4",
  "url": "/captures/2026-08-21/roundup/freight.mp4"
}