Ridership statistics are provided on a system-wide and bus route/station-level basis. Ridership is primarily counted as boardings, that is, customers boarding a transit vehicle (bus or rail). On the rail system, there is a distinction between station entries and total rides, or boardings.
On the rail system, a customer is counted as an “entry” each time he or she passes through a turnstile to enter a station. Customers are not counted as “entries” when they make a “cross-platform” transfer from one rail line to another, since they don’t pass through a turnstile. Where the number given for rail is in “boardings,” what’s presented is a statistically valid estimate of the actual number of boardings onto the rail system.
Boardings are recorded using the bus farebox and farecard reader. In the uncommon situation when there is an operating error with the farebox and the onboard systems cannot determine on which route a given trip’s boardings should be allocated, these boardings are tallied as Route 0 in some reports. Route 1001 are shuttle buses used for construction or other unforeseen events.