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?
- Why are the number of trips normalized on an index?
- How do you normalize GPS data?
- How do you normalize LBS data?
- Can I compare or combine Personal and Commercial Index Values?
- What does the Project Sample Size Metric represent?
- How do I determine whether my Project has a large enough sample size?
- How does the StL Index differ from the sample trip count?
- How do you determine the home and work Locations for a device?
- What is the difference between the Origin-Destination Traffic Index and the various Zone Traffic Index values?