A yearlong pilot with Nevada, Dell and NTT uses infrared and lidar to detect collisions and monitor for cars going the wrong direction on one-way streets.

Commentary: An Alaska-based spatial analyst with The Nature Conservancy shares his formula for leading a successful mapping project through a lesser-known federal program.

As cities prepare for an eventual influx of the vehicles, technologists and policy-makers wrestle with big ethical questions and small roadway dots.