In a series of studies conducted in three countries over more than five years, a Cornell Tech-led team has pioneered the use of “ghostdrivers” – cars with drivers disguised under a car seat-like hood, to make the car appear driverless – in order to assess and compare how pedestrians across cultures might actually behave when encountering these cars on the roads.

Ninety-five percent of on-street parking spaces in New York City are free to use. Because the city has lost a good amount of spaces to bike and bus lanes in recent years, more cars are circling looking for those spots, increasing congestion and frustration. But a proposal to make on-street parking paid has sparked more than its share of controversy in Manhattan.