Category: Information

Google Maps, the dynamic GIS system

Earlier this year, Google Maps added a feature to the common maps interface that allows users to identify problems* with map data or presentation. Click on the “Report A Problem” link in the lower right corner of the current map view. Then drag the marker on top of the error, categorize it, then write a description of the problem.

I reported several problems soon after the feature was released. I checked up on the results of one problem I reported. The situation was the lakefront multi-use path along Lake Michigan in Chicago, Illinois. The screenshots below show the map before I reported the problem and the repaired map.

With this addition, Google Maps seems to be encroaching on the territory of Open Street Map (OSM) that uses ONLY public domain (not the same as free) and user-contributed data. But the data users contribute to Google Maps (in the form of reporting problems on the map) become the property of Google and its data providers.

From the OSM Wiki, “The copyright of the whole data set is scattered among all contributors. Some contributors release their contributions to the public domain.” Readers interested in learning more about maps in the public domain should read this Guardian article about the UK’s Ordnance Survey heavy grip on its data.

Disclaimer: I felt prompted to write this post because James Fee on his blog often (1st) writes (2nd) about the (low) quality of the data Google puts in its Maps.

*Users have long been able to report problems, but never in such an easy way or one that tracks reports and notifies the user when Google fixes the error.

Tuesday roundup: Getting around

These are the posts about “getting around” I found interesting today. Blogs and the links to the referenced articles are in bold.

“Nowhere does transportation happen for transportation’s sake.” – Professor DiJohn, UIC.

Discovering Urbanism

Have you ever noticed from an elevated train or an airplane the dirt paths and small trails through parks and vacant lots? Like water and electricity, people travel the path of least resistance, with or without a dedicated facility. (Is that why flooding’s so difficult to control?) In the most recent “Google Earth Travelogue,” Discovering Urbanism points out the innumerable walking paths in the quarter mile park or mall between two highways and building corridors in Brasilia, the master planned capital of Brasil. Selected quotes:

I added this comment about how planners can use this “route choice theory” (path of least resistance) to determine where to install paths for bicyclists: “Where should cities build bikeways? Where people want them. And how might we figure where people go, aside from a stated answer survey, we could tag 1,000 random bicyclists with GPS and track where they go. It would probably give us an image like the second one in your post: with yellow lines criss-crossing the city’s street network.”

Jennifer Dill’s study of Portland, Oregon, bicyclists did just that! She asked, “How does the built environment influence bicycling behavior; and what routes did they take?” The project wasn’t used to determine where routes should be built, but how existing routes affect trips. I think the same data the project collected could also be used to answer my question, “Where should cities build bikeways?”

Human Transit

The City of Minneapolis, Minnesota, is in the midst of a major transportation upgrade in downtown. They’re converting one-way streets to two way streets with bike lanes and off-peak parking. What a way to “unlock downtown,” says Human Transit.

And they tripled bus capacity on new transit malls with two regular travel lanes in one direction, and two bus-only lanes in the opposite direction. The malls also mixing in staggered bus stops, or groups of stops targeted at a specific area of the city, making “service more legible.” Selected quotes:

  • “…every bus was as slow as the slowest bus.”
  • “Doubling the width triples the capacity.”

I visited Minneapolis in September to explore the Midtown Greenway and Hiawatha light rail. I also rode my rental bike through downtown to get a feel for how another Midwestern city’s downtown lives.

The Transport Politic

Dubai seems to grab way more headlines than its Persian Gulf neighbor, Qatar. But Qatar, with the fastest growing economy on Earth, has decided rail (both passenger and freight) infrastructure is a “crucial element to economic viability.” Some might say the Dubai Metro heavy rail transit line is too late to battle congestion (Reuters). Can Qatar avoid the same fate?

The plan the Qatari government signed with Germany’s Deutsche Bahn is ambitious: “The project will incorporate 180 miles of local light and metro rail for Doha city center, rapidly expanding public transportation offerings for what is now a car-centric place.” Selected quotes:

  • “Deutsche Bahn is laying its reputation — and its money — on the line for this project, which will be its largest-ever foreign investment.”
  • “If a country is defined by the spending it commits to its future, the U.S. is falling behind rapidly.”

I don’t think the United States will start comparing itself it to any Middle Eastern country anytime soon – many in this country still think Iraq was involved in the September 11, 2001, terrorist attacks.

What’s up with SAFETEA-LU

SAFETEA-LU is the “current” federal surface transportation funding bill – it builds highways, light rail, bikeways, and funds safety research and education outreach programs. Typically, Congress passes a six-year reauthorization to the bill, changing its name to reflect some of the new funding priorities it contains, and many times modifying the balance between highways, transit, and “ehancements” like pedestrian and bicycle projects and Safe Routes to Schools.

Read about how SAFETEA-LU was extended twice this year, currently expiring December 18, after an original expiration on September 30, 2009.

House Congressperson Jim Oberstar, the Chairman of the Transportation and Infrastructure Committee, is opposed to President Obama’s suggestion to extend SAFETEA-LU for 18 months, and is opposed to a three month extension as well. His opposition has been known since at least June 2009. He prefers to give Obama a surface transportation reauthorization bill as soon as possible. Obama wants an 18 month extension so that congresspersons can concentrate on passing a healthcare reform bill.

Bike lanes are often projects funded by the federal transportation bill, either under the Transportation Enhancements or Congestion Mitigation and Air Quality programs.

Major barriers to new surface transportation authorization bill:

  • Jim Oberstar, himself – Yes, the House Representative may derail his own bill.
  • Healthcare – The House passed its healthcare reform bill 11 days agoo and the Senate Democrats revealed their version of a healthcare reform bill today.
  • Unmodified revenue scheme – Motor fuel tax unchanged won’t work; The Highway Trust Fund, and its companion, the Mass Transit Fund, is mostly supported by a constant fuel tax that hasn’t changed since 1993.
  • The country’s growing deficit – Bailing out banks and providing economic stimulus money isn’t free.
  • President Obama, himself
  • High speed rail

And, as always, the following two barriers have presented themselves:

  • Representatives’ conflicting priorities about what the national priorities should be, and about what a transportation bill should fund; Congressperson Oberstar has developed a National Transportation Strategic Plan in his reauthorization bill, something the country has lacked for decades.
  • States’ budgets will not be able to match the funding ratios required to be awarded projects.

Read on for deeper explanations of obstacles that add friction to passing a transportation bill.

Continue reading

SAFETEA-LU extensions, explained

Why does Congress keep extending SAFETEA-LU?

SAFETEA-LU expired on September 30, 2009, but President Obama signed a 31-day extension on October 1, 2009. This is the same day the federal budget expired, and the extension, called a continuing resolution, also included funding for nearly all federal agencies to continue their work at current funding levels. The extension bill is H.R. 2918 (public law 111-68).

It’s now November 17, 2009, and what happened to that extension that expired on Halloween? A new bill was signed by the president (on October 30) that makes another extension, this time lasting until December 18, 2009. This extension is buried within H.R. 2996 (public law 111-88). Read the bill and you won’t find any explicit language that extends transportation funding.

Larry Ehl at the Washington (state) Department of Transportation (WashDOT) breaks down how to read between the lines to understand the text necessary to extend SAFETEA-LU. Essentially, H.R. 2996 modifies H.R. 2918. Subscribe to WashDOT’s Federal Transportation Issues blog to stay apprised.

Find bill text at Thomas, an online repository from the Library of Congress.

World photographic tour

Grab your laptop and fall comfortably into your first class couch or easy chair and load up my first world photographic tour.

Flickr is a goldmine of the best photos on earth. Find photos of anything and everything. Learn about far off and not so far off places. With World Tour #1, learn about new transportation developments in Dubai, flashy architecture in England and Spain, and stacked infrastructure in Japan. But our tour won’t be all ritz and glamor. See moveable bridges in Chicago and protected bike lanes in New York City.

See all 15 photos in my World Tour #1 gallery on Flickr, or start the tour below.

Let’s begin!

Spaceship architecture from starchitect Santiago Calatrava. The first building at City of Arts and Sciences, a planetarium, was constructed in 1998. Location: Valencia, Spain. Photo by: Guidotoni58.

Motorists can’t turn at this intersection. Probably to reduce traffic congestion and to accommodate pedestrians. Also notice the enormous stores from luxury goods brands Giorgio Armani and Louis Vuitton. Location: Hong Kong (SAR China). Photo by: PSeangsong.

New train line and rolling stock intended for 2012 Olympics use. 29 trains with 6 cars each. Travels between St. Pancras and Ebbsfleet stations. (I don’t understand the divisions of England and greater London; I decided it would be easier to list the terminals instead of cities or villages.) Location: Greater London, England. Photo by: Fugu ツ.

See 12 more photos and descriptions in my World Tour #1 gallery on Flickr. My favorite photo is the final one, showing an elevated intersection just for pedestrians (similar to what you might see in Las Vegas, Nevada, or any Asian city with a few million residents).