Bollards: Why and What
Bollards—stout posts or barriers separating cars from people—are held up as a simple, often neglected way to prevent vehicles from mounting sidewalks and killing or injuring pedestrians. Commenters argue over where they should be installed, how they compare to alternatives like traffic calming, railings, or speed cameras, and whether prioritizing driver safety over pedestrian protection has distorted road design in the US and elsewhere. Underneath is a broader critique of car‑centric planning, enforcement and political will, with some warning that badly placed bollards can endanger cyclists and that cost–benefit tradeoffs and legal liability make universal deployment unlikely.
Role and effectiveness of bollards
- Widely seen as cheap, simple, and often life‑saving where cars can intrude on pedestrian space (bus stops, storefronts, corners, greenways, terror‑attack targets).
- Advocates stress that bollards “work even if courts don’t”: they physically stop vehicles regardless of lax enforcement or light sentences.
- Others argue bollards should be part of a broader toolkit, not a universal cure; if you “need 200 bollards” on a street, the design is probably wrong.
Where and how to use them
- Strong support for bollards at:
- Bus stops, schools, and places where cars park nose‑in toward buildings.
- High‑risk corners and intersections.
- Places with past “car into building” crashes.
- Several point out bad implementations:
- Bollards on bike paths that sit in the travel line, causing severe or fatal crashes.
- Weak “flex posts” marketed as bollards that don’t stop cars, only nudge behavior.
- Debate over guardrails placed outside sidewalks, protecting cars more than pedestrians.
Alternatives and complements
- Many argue physical traffic calming (narrow lanes, curves, chicanes, speed bumps, trees, raised crossings) should come before or alongside bollards.
- Strong emphasis on lower design speeds; Europe cited as example where street form, not just signs, keeps speeds down.
- Mixed views on cameras: some see them as cheap and effective; others cite plate removal, legal bans, and “after‑the‑fact” enforcement limits.
- Jersey barriers, fences, planters, and “artistic” or landscaped protection discussed as variants.
Costs, aesthetics, and political will
- Skeptics highlight expense, ugliness, construction complexity, and emergency‑vehicle constraints, especially if applied “everywhere.”
- Supporters counter that current car‑centric design and crash damage are already costly and ugly; the real issue is political will and priorities.
Liability and responsibility
- Some want cities sued or engineers held criminally liable for predictable, preventable harms; others warn this leads to risk‑averse over‑engineering or drives talent out of public roles.
- General agreement that current US practice prioritizes motorist convenience and vehicle safety over pedestrian protection.
Data and risk perception
- Multiple disputes over:
- Whether non‑highway speed limits are already appropriate.
- The relative importance of vehicle size vs. speed.
- How many pedestrian deaths bollards would realistically prevent.
- Pedestrian deaths mostly occur away from intersections and at night in cited US data, leading some to question corner‑bollard focus and to emphasize visibility, speed, and impairment instead.