Estimating Bus Loads and OD Flows Using Location-Stamped Farebox and Wi-Fi Signal Data

Table 2

Sensitivity of the final sample size to the screening criteria.

⁢Step  1: signal strength
Criteria (dBm)	−70	−60	−55
Sample size	333	284	217
⁢Step  2: distance
Criteria (m)	100	400	1000
Sample size	284	284	278
⁢Step  3: number of signals
Criteria	5	10	20
Sample size	349	284	204