On the Self-Driving Car's Taste in Maps

The navigational software of successful driverless cars will make Google Maps seem like child's play. But can such a system replace or improve upon human instinct and adaptability?

1 minute read

March 19, 2015, 10:00 AM PDT

By Philip Rojc @PhilipRojc


Google Self-Driving Car

Roman Boed / Flickr

If the driverless car becomes a reality, its mapping programs will require far more subtlety than Google Maps for the human driver. Emily Badger reports on the challenges autonomous vehicles might face. 

As self-driving cars face the open road, the devil is in the details. From the article: "When cars are processing this information, each lane must be individually modeled. The car will need to know that you can't turn left from the right lane (or right from the left lane). Such maps would have to include the slope and precise curvature of each little bit of roadway, as well as the elevation (so that, for instance, a car knows where it is and what to do here). These maps would have to convey which roads travel one-way at rush hour, and exactly when, which intersections have stop signs instead of stop lights, which streets have bike lanes and on-street parking. They'll need to know the exact width of each lane, and every change in lane markings."

Companies such as HERE are developing software to encode and continually update this information, drawing on sensors mounted on driverless cars themselves. Of course, whether such a system can ever reliably replace the human driver is up for debate. 

Monday, March 9, 2015 in The Washington Post - Wonkblog

Large blank mall building with only two cars in large parking lot.

Pennsylvania Mall Conversion Bill Passes House

If passed, the bill would promote the adaptive reuse of defunct commercial buildings.

April 18, 2024 - Central Penn Business Journal

Street scene in Greenwich Village, New York City with people walking through busy intersection and new WTC tower in background.

Planning for Accessibility: Proximity is More Important than Mobility

Accessibility-based planning minimizes the distance that people must travel to reach desired services and activities. Measured this way, increased density can provide more total benefits than increased speeds.

April 14, 2024 - Todd Litman

Rendering of wildlife crossing over 101 freeway in Los Angeles County.

World's Largest Wildlife Overpass In the Works in Los Angeles County

Caltrans will soon close half of the 101 Freeway in order to continue construction of the Wallis Annenberg Wildlife Crossing near Agoura Hills in Los Angeles County.

April 15, 2024 - LAist

View of downtown Seattle with Space Needle and mountains in background

Eviction Looms for Low-Income Tenants as Rent Debt Rises

Nonprofit housing operators across the country face almost $10 billion in rent debt.

4 hours ago - The Seattle Times

Rendering of Brightline West train passing through Southern California desert

Brightline West Breaks Ground

The high-speed rail line will link Las Vegas and the Los Angeles area.

5 hours ago - KTLA

Aerial view of gold state capitol dome in Denver, Colorado and Denver skyline.

Colorado Bans No-Fault Evictions

In most cases, landlords must provide a just cause for evicting tenants.

6 hours ago - Colorado Politics

News from HUD User

HUD's Office of Policy Development and Research

Call for Speakers

Mpact Transit + Community

New Updates on PD&R Edge

HUD's Office of Policy Development and Research

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.