Oh, parallel parking, that scourge of driving tests. Unless you happen to drive around in a big city often, you may be somewhat out of practice in the skill of parallel parking, since modern suburban parking lots have made it almost obsolete. But when it is necessary, man, is it time-consuming and embarrassing to struggle through as a relative amateur.
Why aren’t cars made with easy parallel parking in mind? That’s the question that arises when you watch this 1927 video of a car that can pivot in circles. The film, from the Pathé News archive, shows an exciting invention on display in Paris in the early 20th century. The car’s front wheels turn sideways, allowing it to swing out like a door. Suddenly, getting into that tight spot is easy: just back in, then pivot the front end into place.
Dubai is home to plenty of flashy fashion and architecture, and it has over-the-top police gear to match. The department already is outfitted with some of the fastest cars on the streets, including a Ferrari and a Lamborghini. Now, Autoblog reports that police officers in the United Arab Emirates city are getting hoverbikes to access hard-to-reach places.
The bikes, which were developed by the Russian startup Hoversurf, debuted in early October at the Gulf Information Technology Exposition (GITEX) in Dubai. Like Hoversurf’s Scorpion-3 hoverbike, the police version is battery-powered and uses propellers at each corner to float like a drone. The newly-released model can reach maximum altitudes of 16 feet and move at speeds of up to 43 mph. Though the quadcopter can only carry one passenger at a time, it can withstand weights of up to 660 pounds. A fully charged battery is enough to fuel a 25-minute ride.
The futuristic addition to the force’s fleet of vehicles isn’t designed for chasing bad guys. Rather, the city hopes to use it to reach out-of-the-way spots during emergencies. If there’s a car wreck at the end of a traffic jam, for example, the Scorpion hoverbike could simply fly over the congestion and reach the scene faster than the department could with cars on the ground.
While cities around the world are still figuring out how low-flying drones and vehicles fit into pedestrian areas, Dubai has been quick to embrace the technology. In 2015, the city invested in jetpacks for first responders. While it's still unclear when the gadgets will be used in an official capacity, the CEO of Hoversurf has confirmed that mass production of the bikes is already underway.
Depending on where you live, your address will end in a different designation. You might live on 10th Street, or Meadow Lane, or Red Fox Road. Maybe those throughways intersect a road with a name like Washington Avenue or Park Place. Why the difference? There’s actually a method to the road-naming madness that goes beyond just the whims of urban designers.
Just like there are defined factors that distinguish a highway from a regular city street, there are characteristics that make streets, roads, and avenues distinct from one another. The difference between names like C Street and Avenue B comes down to variables like the size of the path, what surrounds it, and how it intersects with other roads.
A plain old “road,” for instance, is a general term for any throughway that connects two points. Like a square is also a rectangle, streets and avenues are types of roads.
“Streets” are public roads that have buildings on both sides. They’re often perpendicular to “avenues,” which historically were grander and wider. These days, the difference tends to be directional.
In Denver, for instance, naming conventions dictate that Streets run north-south and avenues run east-west. In Manhattan, it’s the opposite, with “Avenues” running north-south and streets running east-west. This isn’t always the case, though: in Washington, D.C., avenues run diagonal to the street grid.
Oddly enough, avenues and streets can be combined, too. In a naming convention particular to Tucson, Arizona, some roads are “Stravenues,” which run diagonal to the normal north-south/east-west grid. (The U.S. Postal Service recognizes these by the abbreviation “Stra.”)
There are many other kinds of street names, of course. "Boulevards," designed to funnel high-speed traffic away from residential and commercial streets, are even grander than avenues, with trees on either side and a sizable median. Then there are the smaller roads, with names that might feel familiar to anyone who’s driven around a suburban housing tract. A “Way” is a smaller side street that splits off from a road. A “Place” has a dead end, as does a “court,” which usually ends in a cul-de-sac. A “Lane” is narrow, and is usually located in a more remote, rural place. A "Drive" tends to wind around a natural landmark, like a mountain or a lake.
To get a better sense of the visual differences, a video from Vox handily illustrates these principles:
Now, you can look at an address and know plenty about the street without even seeing it.