{
    "Hour": {
        "description": "The hour of the day when the data was recorded",
        "data_type": "object (datetime-like string)",
        "unit": null
    },
    "sensor_id": {
        "description": "Unique identifier for the sensor",
        "data_type": "int64",
        "unit": null
    },
    "Occupancy (%)": {
        "description": "Percentage of the road occupied by vehicles",
        "data_type": "float64",
        "unit": "percent"
    },
    "Speed (mph)": {
        "description": "Average speed of vehicles",
        "data_type": "float64",
        "unit": "miles per hour"
    },
    "Lane 1 Occ (%)": {
        "description": "Percentage occupancy of Lane 1",
        "data_type": "float64",
        "unit": "percent"
    },
    "Lane 1 Speed (mph)": {
        "description": "Average speed of vehicles in Lane 1",
        "data_type": "float64",
        "unit": "miles per hour"
    },
    "Lane 2 Occ (%)": {
        "description": "Percentage occupancy of Lane 2",
        "data_type": "float64",
        "unit": "percent"
    },
    "Lane 2 Speed (mph)": {
        "description": "Average speed of vehicles in Lane 2",
        "data_type": "float64",
        "unit": "miles per hour"
    },
    "Lane 3 Occ (%)": {
        "description": "Percentage occupancy of Lane 3",
        "data_type": "float64",
        "unit": "percent"
    },
    "Lane 3 Speed (mph)": {
        "description": "Average speed of vehicles in Lane 3",
        "data_type": "float64",
        "unit": "miles per hour"
    },
    "Lane 4 Occ (%)": {
        "description": "Percentage occupancy of Lane 4",
        "data_type": "float64",
        "unit": "percent"
    },
    "Lane 4 Speed (mph)": {
        "description": "Average speed of vehicles in Lane 4",
        "data_type": "float64",
        "unit": "miles per hour"
    },
    "Lane 5 Occ (%)": {
        "description": "Percentage occupancy of Lane 5",
        "data_type": "float64",
        "unit": "percent"
    },
    "Lane 5 Speed (mph)": {
        "description": "Average speed of vehicles in Lane 5",
        "data_type": "float64",
        "unit": "miles per hour"
    },
    "Fwy": {
        "description": "Freeway number where the sensor is located",
        "data_type": "object",
        "unit": null
    },
    "District": {
        "description": "District number where the sensor is located",
        "data_type": "int64",
        "unit": null
    },
    "County": {
        "description": "County where the sensor is located",
        "data_type": "object",
        "unit": null
    },
    "City": {
        "description": "City where the sensor is located",
        "data_type": "object",
        "unit": null
    },
    "CA PM": {
        "description": "California postmile marker",
        "data_type": "object",
        "unit": null
    },
    "Abs PM": {
        "description": "Absolute postmile marker",
        "data_type": "float64",
        "unit": "miles"
    },
    "Length": {
        "description": "Length of the segment where the sensor is located",
        "data_type": "float64",
        "unit": "miles"
    },
    "Name": {
        "description": "Name of the location in shorthand, e.g. '99SB at Crystal Way'",
        "data_type": "object",
        "unit": null
    },
    "Lanes": {
        "description": "Number of lanes monitored by the sensor",
        "data_type": "int64",
        "unit": null
    },
    "Type": {
        "description": "Type of road or segment (always 'Mainline' in this case)",
        "data_type": "object",
        "unit": null
    },
    "Sensor Type": {
        "description": "Type of sensor used (e.g., 'loops', 'radars', 'magnetometers', 'others')",
        "data_type": "object",
        "unit": null
    }
}