Hi TRB TDM Committee member & friends –
Please see attached for the agenda for our mid-year meeting. Excited to see many of you in person! And do remember there is a remote option too.
Best,
Tien-Tien
Tien-Tien Chan [pronounced TIM+tim]
Principal
Nelson\Nygaard | Putting people first
77 Franklin St.;10th Floor, Boston, MA 02110
nelsonnygaard.com | Twitter | LinkedIn
Mobility | Accessibility | Sustainability
--
Message sent via Transportation Research Board Transportation Demand Management (TDM) Committee Google Group. For more Committee news and info, visit https://abe50trb.wordpress.com/
---
You received this message because you are subscribed to the Google Groups "TRB TDM Committee (AEP60) Google Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email to trb-tdm+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/trb-tdm/DM8PR02MB7895F888331661B5BA003BA6B634A%40DM8PR02MB7895.namprd02.prod.outlook.com.
Thanks, Lama. I regret that my 8-hour flight delay yesterday, and the fact that I was finally “in the air” at the time of yesterday’s committee meeting, precluded my presenting FHWA’s parking cash-out research (either in-person or virtually) that I was scheduled to present at the TRB TDM Committee meeting. The presentation I had planned is attached, and is also summarized in this message. First, though, here’s a link to the completed study which was the basis of my planned presentation: https://ops.fhwa.dot.gov/publications/fhwahop23023/index.htm.
FHWA analyzed and evaluated the impact city‑level parking cash‑out ordinances could have on vehicle travel, congestion, Greenhouse Gas emissions, crashes, and equity externalities for a sample of nine cities and five distinct scenarios. Parking cash-out means employers that subsidize parking offer commuters the option to take a benefit, typically of equivalent monetary value, instead of the parking subsidy. The final report describes the scenarios studied; the analysis approach, including inputs, outputs, methodology, limitations, and assumptions; data sources; and results for the sample of cities.
The scenarios reflect different versions of parking cash-out/commuter benefit programs. As summarized in the graphic below, a broad range of policy scenarios are studied.
|
Scenarios |
Affects employers offering free parking |
Affects employers NOT offering free parking |
|
Scenario 1: Monthly Parking Cash-Out |
✓ |
|
|
Scenario 2: Monthly Commuter Benefit |
✓ |
|
|
Scenario 3: Monthly Parking Cash-Out + Pre-Tax Transit Benefit for Employees without Subsidized Parking |
✓ Cash-out |
✓ Pre-tax transit benefit |
|
Scenario 4: Daily Parking Cash-Out + Pre-Tax Transit Benefit for Employees without Subsidized Parking |
✓ Cash-out |
✓ Pre-tax transit benefit |
|
Scenario 5: Requirement to Eliminate Subsidized Parking Benefit + Provide Universal $5 Per Day Employer-Paid Non-SOV Commute Benefit |
✓ Eliminate parking benefit, add universal non-SOV benefit |
✓ Eliminate parking benefit, add universal non-SOV benefit |
Some of the above scenarios mirror implemented policies. Rhode Island law implements scenario 2 in some circumstances; California has a long-standing law, strengthened significantly by Governor Newsome’s signing of AB 2206 on Sept. 30, 2022 (see: https://cal.streetsblog.org/2022/09/19/bill-would-benefit-workers-who-dont-use-free-employee-parking), that implements a version of scenario 1; and Washington, DC’s, ordinance is most akin to scenario 3.
While results that are shown in the figure below vary by city and policy scenario, commute VMT reductions of between 5 and 25% are projected in two-thirds of cases, resulting in a significant reduction of peak commute congestion. Listen to the following brief audio clip related to this study: https://yaleclimateconnections.org/2023/04/Free-employee-parking-is-actually-costing-the-climate-and-commuters/.

Figure 1: Results: Percent Reductions in Daily Citywide Commute VMT by Cash-Out Scenario and City
I welcome folks contacting me by e-mail if they’d like any additional information.
Sincerely,
Allen Greenberg
From: trb...@googlegroups.com <trb...@googlegroups.com>
On Behalf Of Lama Bou Mjahed
Sent: Monday, July 31, 2023 4:14 PM
To: tc...@nelsonnygaard.com
Cc: trb...@googlegroups.com
Subject: Re: [TRB-TDM-AEP60] TRB TDM Committee (AEP60) Mid-Year Meeting
CAUTION: This email originated from outside of the Department of Transportation (DOT). Do not click on links or open attachments unless you recognize the sender and know the content is safe.
To view this discussion on the web visit https://groups.google.com/d/msgid/trb-tdm/CAEtDxPsUUz%3DPc7z%2B-qN_q5jXUjaTSON0aX5BSgWM9wwhWULNOg%40mail.gmail.com.