{
    "What types of truck trips are occurring within Napa County?": "TTyp6",
    "What are the peaking characteristics of Napa County truck trips?": "TTyp7",
    "Where are truck trips starting and ending within Napa County?": "OD16",
    "What other counties do Napa County trucks interact with?": "OD17",
    "What is the length of Napa County truck trips?": "TL3",
    "How much VMT is generated by Napa County truck trips?": "VMT3"
}