One solution to OMNY's math problem
Here's one way to implement fare capping
subway
OMNY's mind-blowing solution to a math problem
The unintuitive fare capping scheme for NYC commuters
OMNY needs a facelift
OMNY has a bigger screen but displays less information
The forbidding math of finding terrorists
New York subway tests a gun detection technology
A paradox of big data
Kaiser tries the new subway card.
From grand theft to grand retreat
Kaiser revisits the self-checkout debacle.