Trips are analyzed if they start in or initially pass through the Origin Zone and then if they end in or subsequently pass through the Destination Zone. With Pass-through Zones, this can get tricky as there is no restriction that the trip only pass through the Zones once. We usually see "invalid" O-D pairs with Pass-through Zones from highly circuitous trips such as those from TNC vehicles (like Lyfts and Ubers)
Articles in this section
- What is the StL Index?
- What is the difference between the Origin-Destination Traffic Index and the various Zone Traffic Index values?
- How do I interpret trips with the same origin and destination?
- Why are the number of trips normalized on an index?
- How does the StL Index differ from the sample trip count?
- How do you normalize GPS data?
- How do you normalize LBS data?
- Can I compare or combine Personal and Commercial Index Values?
- Can I compare Bicycle, Pedestrian, and Vehicular Metrics to each other?
- Where can I find the Project Sample Size?