H.R. 3440 (119th)Bill Overview

Traffic Safety Enhancement Act of 2025

Transportation and Public Works|Transportation and Public Works
Cosponsors
Support
Bipartisan
Introduced
May 15, 2025
Discussions
Bill Text
Current stageCommittee

Referred to the Subcommittee on Highways and Transit.

Introduced
Committee
Floor
President
Law
Congressional Activities
01 · The brief
Plain-English summaryWhat this bill actually does

This bill amends 23 U.S.C. §133(b) to add “Construction of roundabouts” as an eligible project under the Surface Transportation Block Grant Program (STBG). It simply makes roundabout construction an allowable use of STBG funds; it does not specify design standards, funding levels, or additional requirements.

Why people may split

Design safeguards: liberals want pedestrian/cyclist protections; conservatives emphasize local choice.

Watch point

Relative to its intended legislative type, this bill is a narrowly focused substantive amendment that clearly identifies the statutory provision to change and adds a single eligible project category, but it provides minimal explanatory, fiscal, definitional, or oversight detail.

This bill amends 23 U.S.C. §133(b) to add “Construction of roundabouts” as an eligible project under the Surface Transportation Block Grant Program (STBG).

It simply makes roundabout construction an allowable use of STBG funds; it does not specify design standards, funding levels, or additional requirements.

Passage30/100

Content is low-controversy and implementable, but as a standalone statutory tweak it faces low legislative priority and procedural hurdles.

CredibilityPartially aligned

Relative to its intended legislative type, this bill is a narrowly focused substantive amendment that clearly identifies the statutory provision to change and adds a single eligible project category, but it provides minimal explanatory, fiscal, definitional, or oversight detail.

Contention28/100

Design safeguards: liberals want pedestrian/cyclist protections; conservatives emphasize local choice.

02 · What it does

Who stands to gain, and who may push back.

Likely benefits vs burdens50% / 50%
Local governmentsLikely burdened

These are examples from the analysis, not a ranked list of the most-affected groups.

Likely helped
  • Local governmentsEnables use of federal STBG funds to offset local costs for roundabout construction projects.
  • Potential benefitMay reduce severe crash frequencies at converted intersections, increasing overall traffic safety.
  • Potential benefitCan improve traffic flow and reduce vehicle idling and associated emissions at treated intersections.
Likely burdened
  • Potential burdenCould divert limited STBG dollars away from other highway, transit, or pedestrian projects.
  • Potential burdenConstruction and land acquisition costs for roundabouts can be higher than signal modifications.
  • Potential burdenPoorly designed roundabouts can pose accessibility and safety challenges for pedestrians and bicyclists.
03 · Why people split

Why the argument around this bill splits.

Design safeguards: liberals want pedestrian/cyclist protections; conservatives emphasize local choice.
Progressive80%

Likely supportive overall because roundabouts can reduce serious crashes and vehicle idling.

Would want safeguards for pedestrians, cyclists, transit access, and equity in project selection.

Leans supportive
Centrist75%

Generally favorable as a modest, evidence-backed expansion of eligible projects that preserves local choice.

Sees value in evaluation, cost-effectiveness, and design standards before broad rollout.

Leans supportive
Conservative60%

Cautious but mildly supportive because the bill simply allows existing federal funds to be used for a local infrastructure option.

Concerned about federal nudging of specific design choices and taxpayer cost.

Split reaction
04 · Can it pass?

The path through Congress.

Introduced

Reached or meaningfully advanced

Committee

Reached or meaningfully advanced

Floor

Still ahead

President

Still ahead

Law

Still ahead

Passage likelihood30/100

Content is low-controversy and implementable, but as a standalone statutory tweak it faces low legislative priority and procedural hurdles.

Scope and complexity
24%
Scopenarrow
24%
Complexitylow
Why this could stall
  • No Congressional Budget Office cost or score provided
  • Whether it will be attached to a larger transportation package
05 · Recent votes

Recent votes on the bill.

No vote history yet

The bill has not accumulated any surfaced votes yet.

06 · Go deeper

Go deeper than the headline read.

Included on this page

Design safeguards: liberals want pedestrian/cyclist protections; conservatives emphasize local choice.

Content is low-controversy and implementable, but as a standalone statutory tweak it faces low legislative priority and procedural hurdles.

Unlocked analysis

Relative to its intended legislative type, this bill is a narrowly focused substantive amendment that clearly identifies the statutory provision to change and adds a single eligible project category, but it provides min…

Go beyond the headline summary with full stakeholder mapping, legislative design analysis, passage barriers, and lens-by-lens tradeoff breakdowns.

Perspective breakdownsPassage barriersLegislative design reviewStakeholder impact map
Open full analysis