No, 2019 won't be the year self-driving cars take over the world. Apparently, the fully-automated driving future isn't as easy to realize as its boosters have suggested.
On the other hand, 2019 will see IoT play a bigger role in personal transportation of all kinds. Automobile driver assist technology will improve, as it has in every recent model year, and connected sensors will play a bigger role in that development.
Smart street lighting, meanwhile, will make roads safer for pedestrians, with pedestrian and automobile traffic patterns triggering lighting behaviors. Data-driven parking apps, enabled by sensors embedded in light poles, will cut down the time that drivers spend hunting for places to put their cars.
IoT-driven technologies, including navigation and payment solutions, will make life easier for users of public transportation networks. In a world in which sensor tech can frictionlessly track commuters' movements, running a metro card through a turnstile will start to look more and more like yesterday's news.
The IoT will also improve routing between multiple modes of transportation. Sure, the trains will run (more consistently) on time—but they'll also run in such a way as to optimize connections with buses, tramways, and even bicycles.