Tag Archives: statistics

Stat-urday: About the Bus

20 Oct

Bus line at Civic Center StationIn honor of the first World Statistics Day, a few MARTA bus numbers:

500,000 miles or 10 years: The maximum service life of a bus. After buses are retired from service, they’re sold on a public online auction site.

$2,500: The approximate price a second-hand bus usually goes for at auction. They’re generally purchased for parts or scrap metal.

1,290,000: The approximate number of paper timetables MARTA’s print shop prints each year. MARTA’s manager of communications, Cara Hodgson, said in an email that there’s been “no noticeable change” in the demand for paper schedules since they became available online.

Timetables for some routes have to be printed more than others. The three most in-demand printed schedules are for routes 5-Piedmont Road/Sandy Springs, 15-South DeKalb/Candler and 39-Buford Highway. Three of the least in-demand schedules are 47-I-85 Access Road/Briarwood Rd, 103-N. Shallowford Road/Peeler Road and 104-Winters Chapel Road.

8,978: The number of bus stops in MARTA’s service area

4,133: The number of those stops that are in the city of Atlanta

800 to 1000 feet: MARTA’s guideline distance for separation of bus stops. Factors like development density, land use, accessibility and safety sometimes require stops to be placed closer together or farther apart.

5.01 route miles: The length of MARTA’s shortest bus route, which is 67-West End. The longest is 143-Windward Park and Ride at 35.1 route miles

148: The average number of weekday boardings for route 148-Medical Center/Riveredge Parkway, a peak-time-only route, which has the lowest ridership

6,982: The average number of weekday boardings for route 39-Buford Hwy, the route with the highest ridership

$22.37: The average cost for MARTA’s sign shop to manufacture a roadside bus stop sign

92: The number of bus routes MARTA currently operates. That total is down about 30 percent from 133 routes in 2007, nearly 27 percent less than the 126 routes in 2002, and about 41 percent less than the 156 routes running in 1997

Sources: MARTA bus service and operations management staff and Cara Hodgson, director of communications


Slow Going: Congestion stats from ARC

21 Feb

Image: ARC

The latest Atlanta Regional Commission’s “Regional Snapshot” shows how Atlanta’s traffic congestion stats stacks up against 14 other major metros. The ARC analyzed data from the American Community Survey, the American Transportation Research Institute and the Texas Transportation Institute and found Atlanta ranked:

  • 11th for total hours of congestion-related delays
  • 9th for the total number of jobs
  • 4th for the total number of hours that commuters spend traveling to their jobs each year. The Atlanta metro average was 126 hours per year, which equals about three weeks of workdays.
  • 4th for the percentage of workers who have at least a 45-minute commute to work
  • 1st in the Southeast for congestion cost per commuter. Here’s how the congestion cost was calculated

Metro Atlanta’s I-285 and 1-85 North interchange also ranked ninth among the 250 most congested bottlenecks in the country, according to American Transportation Research Institute data.

A possible upside to those numbers: “Areas with the most jobs tend to also have the most congestion,” the ARC report said. So, Atlanta’s status as a major job center is still intact, but that might soon be overshadowed by its reputation as a place to sit in traffic on the way to those jobs.

Stat-urday: Slow growth, zero-vehicle households and the price of living somewhere less expensive

1 Sep

Population growth in the city and surrounding metro area slowed down dramatically in the second half of the past decade. While that statement might have the ring of a headline from Obvious Monthly, looking at specifics takes it from “Well, Duh” to “Whoa.”

ARC estimated that the 10-county Atlanta metro region’s population grew by 34,550 in the year between April 2010 and April 2011. That’s about 65 percent less than the yearly rate between between 1990 and 2000.

“Over the last three years, essentially since the recession began, the 10-county region has added approximately 91,000 people. To put this into perspective, during the fast-growing 1990s and the 2000 decade, the Atlanta region routinely added 100,000 new residents each year.”

The city of Atlanta, which still hasn’t recovered the more than 70,000 residents it lost between 1970 and 1980, had a net increase of only 697 residents between 2010 and 2011. While that number is still the subject of a dispute between the city and the Census Bureau, it falls well within the pattern of the last 40 years.

The report uses American Community Survey data from the country’s 100 largest metro areas to sketch a profile of the 10 percent of those areas’ households that don’t have a car.

“The United States added over 655,000 roadway lane miles since 1980, leading to the rapid decentralization of housing and jobs. Such decentralization leaves a zero-vehicle household’s most likely travel modes—transit, walking, and biking—at a structural disadvantage due to evergrowing distances between locations.”

Just seven of those 100 metro areas contain nearly half of all the zero-vehicle households studied. The New York area contained 28 percent of them, followed by Chicago, with about 5 percent. Los Angeles, Philadelphia, Boston, San Francisco and Washington, DC rounded out the top seven.  Atlanta was around the middle of the pack, with a little more than one percent of the total.

 Among the study’s findings:

  1. Nearly 60 percent of zero-vehicle households in the country were classified as low-income and nearly 62 percent of them are in the primary cities of their metro areas.
  2. While households without cars tend to congregate in central cities, and transit agencies tend to concentrate their coverage in those areas, about 700,000 zero-vehicle households are in areas not served by transit. In the Atlanta area, 37,634 of the 119,638 households without a car also don’t have transit coverage.
  3. Zero-vehicle households are distibuted pretty evenly across ethnic groups. White households made up 36.4 percent of those without a car, Hispanic households 27.7 percent, and black households 25.3 percent.
  4. People living without a car in suburban areas of the South have less access to jobs than any other group.

With purchase prices for housing having slid a lot in the three years since this index was published, some of the figures are probably a little different now.  But it still illustrates the choice many workers have to make between expensive housing and an expensive commute.

The fact sheet for the Atlanta metro compares combined housing and transportation costs for areas within the city, just outside the city and a far north suburb:

Housing costs for residents of Canton, in Cherokee County, averaged about 26 percent of annual income, while those in Sandy Springs spent almost 36 percent. Around Lenox Square it was almost 40 percent. So, by living much farther outside the city, one might spend around 50 percent less on housing.

But “drive ’til you qualify” only works if you rarely leave home.

Workers living in the neighborhood around Lenox Square spent an average of 16.82 percent of their income on transportation, while workers in Canton spent more than twice as much – 29.12 percent. Workers in Sandy Springs spent 21.78 percent. The difference between the intown commuters and those in Cherokee County is glaring, but even more so taken with the fact that the median annual household income in Canton was $8,376 less than in the Lenox Square area.

The numbers also reflect the raging height of the housing bubble at the end of 2007. If CNT’s numbers are to be believed, the cost of owning a house in the Lenox Square area had spiked to an average of more than 73 percent of the area’s median income. In Cherokee County it was about 27 percent.

If you’re curious about the numbers for your neighborhood, there’s a detailed interactive map for Atlanta and 51 other metro areas at the CNT site.

Things You Never Knew You Wanted to Know: Taxi Facts

4 Jul

The Atlanta Police Department’s Bureau of Taxicabs and Vehicles for Hire enforces the city’s ordinances regarding taxi licensing and operation.

To operate a taxi in the city of Atlanta drivers must purchase of a Certificate of Public Necessity and Convenience, also sometimes referred to as a medallion. CPNCs can be purchased directly from the city or transferred from one operator to another.

Taxi drivers must be affiliated with a taxi company licensed by the City of Atlanta.

162: Chapter number of Atlanta’s municipal code governing the operation and licensing of taxis

23: The number of taxi companies licensed by the City of Atlanta

10: The maximum age at which vehicles may be used as a taxis in the city of Atlanta

1600: The number of CPNCs available for taxis in the city.

1554 to 1558: The number of CPNCs currently assigned

$6,000: The minimum cost to acquire a CPNC from the City of Atlanta.

$36,958.50: Average price paid for a City of Atlanta CPNC in 2010

$60,000: The highest price at which a CPNC was transferred from one operator to another in 2010*

$1: The lowest price for a City of Atlanta CPNC transfer in 2010

6: Number of months between inspections for each taxi

$2.50: Mandatory fare for the first one-eighth of a mile of a metered taxi trip. Each additional one-eighth of a mile is 25 cents.

$40.00: Flat rate fare between Buckhead and Hartsfield-Jackson International Airport


  • Cedric Burse, manager of the Bureau of Taxicabs and Vehicles for Hire
  • Atlanta Municpal Code

*That sounds like a lot until you see the prices that New York City’s medallions go for. Average cost of a transfer between individuals there in 2010: $603,583.33

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