Posts Tagged ‘mode share’

Study: Just Six Tracks Carry 30% of People Across the Potomac (57 Highway Bridge Lanes Carry the Rest)

July 29th, 2015 2 comments

A new Virginia study (PDF) finds that Metro and other transit operators carry a major portion of all cross-Potomac travel in a just a few crossings, using far less space than the 57 highway bridge lanes that carry the rest. If built, an expanded bridge crossing will need transit to maximize its ability to move people across the river.

PotomacRiverStudy Map

Transit’s Role is Critical

While some media outlets focused on the study’s highway expansion recommendation, the presentation acknowledged that Metro, VRE, and other bus operators plays a major role in the movement of people across the river from Virginia to DC in the core of the region. Seeing that, we thought we we’d drill down further to estimate how many people are actually crossing the river, using which bridge, and by what mode. Supplementing the study with available transit ridership data and vehicle occupancy data (PDF), we arrived at the following estimates: Read more…

Metrorail Brought One-Third of Fans to Nationals Park in 2014

December 22nd, 2014 14 comments

Carrying an average of 11,000 riders to every Nationals home game, Metrorail maintained a 34% mode share to Nationals park in the 2014 season.

How many baseball fans take Metro to Nationals Park? Metro’s rail planning team tracks this statistic, by looking at activity around game times at Navy Yard-Ballpark and Capitol South stations that exceed our typical baseline ridership.  On game days, Metro provides special game-day trains on the Green Line to handle increased loads to and from Navy Yard-Ballpark station.

Over the 81 home games in 2014, Metrorail brought an estimated 890,000 total riders to the ballpark, or about 11,000 riders per game.  Compared to the average attendance of 31,000 at Nationals Park this year, this equates to a 34% mode share for Metrorail at Nationals Park.  Including both entries and exits, Nationals games generated about 1.7 million total trips for Metrorail this season. A few more observations:

  • Interestingly, ridership to the game is typically 8% higher than ridership from the game – some spectators must be finding another way home!
  • Metrorail’s mode share was highest for Friday games (38%), and lowest for Wednesday games (32%)
  • Mode share increases slightly for high-attendance games, but the relationship is weak.  Metrorail’s market share remains mostly stable in the 30-40% range, whether attendance was 20,000 or 40,000.

We’ve posted additional visualizations and the raw data, in addition to the charts in this post. What do you think? What patterns do you see?

Planning for the End of the Driving Boom

March 27th, 2014 2 comments

Americans are driving less and owning fewer cars, which means we have to make different decisions about where to spend scarce transportation resources.

In a fascinating post in the Atlantic Cities, Eric Jaffe doesn’t waste words with assumptions but rather relies on actual data to inform us that America has already reached “peak driving” and that the future of transportation in America is no longer linked to ever-increasing vehicle miles traveled (VMT).

This should come as no surprise, given that VMT has missed forecasted estimates since the early 2000’s. Just check out this handy chart from the U.S. Department of Transportation’s Conditions and Performance Report (PDF) to Congress.

Figure 1. U.S. VMT (in trillions) as tracked by FHWA’s Travel Volume Trends (“Actual”) and as projected by U.S. DOT’s C&P reports (by year reports are dated). Via SSTI. Click image for original: http://www.ssti.us/2013/12/new-travel-demand-projections-are-due-from-u-s-dot-will-they-be-accurate-this-time/

 

Regional roadway planners are already beginning to embrace this thinking, as the chart from the State Smart Transportation Initiative illustrates in its analysis of MDOT’s transportation plans. These plans not only acknowledge declining VMT, but now omit traffic projections altogether. Read more…