Bikes, roof racks and various other items are often billed as matters of convenience — don’t have room inside your vehicle for bulky travel items? Put them on a roof rack or strap them onto the back of your vehicle. In other instances, it’s a matter of contracting businesses hauling all of their tools around without using a properly-sized vehicle. Either way, these types of vehicle add-ons can be dangerous. From time to time, you might see some comic lampooning of people using roof racks improperly, for example, transporting pets in a bubble above their car. But you rarely see some of the more grim

The city of New York has an enormous amount of infrastructure. An array of bridges and tunnels serve millions of people going into or out of the five boroughs. Anyone who is at all familiar with New York City geography knows about using the George Washington Bridge, the Verrazano, the Triborough Bridge, the Lincoln Tunnel and other critical corridors for local traffic, and they likely know and appreciate how to travel them, as well as how they work to direct traffic through the metro area. So how does the local government work to manage this extensive traffic system? One way is by posting routine alerts