Risky play and acceptable risk

A hazard and a risk are not the same thing

This distinction is the whole argument, and it is worth getting precise.

A hazard is a source of harm a child cannot see, cannot judge, and did not choose. A gap that traps a head. A bolt that catches a drawstring. A rotten post. Surfacing that looks fine and is rated for three feet under an eight foot deck. The child has no way to assess any of these, so no decision the child makes will protect them.

A risk is a challenge a child can see, weigh and accept or refuse. A tall climbing net. A fast slide. A log that wobbles. The child decides how far to go, and that decision is part of what makes the activity worth doing.

Safety standards exist to eliminate the first category. They were never written to eliminate the second, and when they are applied as if they were, the result is a site that is both boring and, in the longer run, not obviously safer. The Play Safety Forum guidance makes the point directly: if play provision is not challenging enough, children go and find challenge somewhere that was not designed for it¹.

The six categories of risky play

The most widely cited description of what risky play consists of comes from Ellen Beate Hansen Sandseter, in a 2007 paper in the European Early Childhood Education Research Journal³. The categories came from qualitative observation and interviews at two Norwegian preschools, so treat them as a useful vocabulary rather than as measured findings. They have held up because practitioners recognize them.

Two of these are hard to provide on a municipal playground. Harmful tools belong to supervised settings such as adventure playgrounds and forest school programs, not to an unstaffed park. Getting lost sits uncomfortably with sight lines, and most US park agencies will not accept it. The other four are routinely achievable and cost very little: height with a net, speed with a slope, elements with sand and water, rough and tumble with open ground that nobody has filled with equipment.

Risk benefit assessment, as UK and European practice does it

Conventional risk assessment counts only one side of the ledger. It asks what could go wrong and how likely it is, which means the safest possible answer is always to provide nothing at all. Risk benefit assessment adds the other side: what the feature is for, what children get from it, and what is lost if it goes.

The method is set out in Managing Risk in Play Provision: Implementation guide, written by David Ball, Tim Gill and Bernard Spiegal and published for Play England on behalf of the Play Safety Forum¹. It is deliberately descriptive rather than numerical. The guide argues against scoring risks and benefits with numbers, on the grounds that benefits such as confidence cannot be quantified the way an injury rate can, and that scoring varies wildly between scorers. The record is a written judgment, not a calculation.

A usable record has five parts:

1. The feature. What it is and where.
2. The benefits. Which kinds of play it supports, for which ages.
3. The risks. What could go wrong, and how severe.
4. The controls. Surfacing, sight lines, inspection frequency, age zoning.
5. The decision, signed and dated. Who accepted the residual risk, and why.

The UK Health and Safety Executive endorsed this balanced approach jointly with the Play Safety Forum in a high level statement². That is unusual and worth knowing about: the regulator itself said that play providers acting sensibly and proportionately should not fear prosecution, and that eliminating trivial risk is not the goal.

What the standards themselves say about challenge

It is worth quoting the European standard, because people assume standards are purely restrictive. BS EN 1176-1 states that children need to learn to cope with risk, and that this may lead to bumps and bruises and even occasionally a broken limb. The same standard says its purpose is to ensure a proper level of safety while promoting activities and features known to benefit children¹.

US documents are framed differently. The CPSC Public Playground Safety Handbook is written as hazard guidance: it identifies hazards and tells you to remove them⁴. It does not discuss play value or benefit, and it does not use the language of acceptable risk. ASTM F1487 is a performance specification for equipment. Neither document contains anything resembling a risk benefit procedure. That is not a criticism, it is a difference in scope, and it explains why US practice tends to stop at compliance. CPSC, ASTM and standards explains what each document does and does not cover.

Talking to a cautious committee or an insurer

Three arguments work, in roughly this order.

Separate the two lists. Bring a hazard list and a challenge list to the meeting. Concede everything on the hazard list immediately and without argument: head entrapment, protrusions and entanglement, and correct fall height and use zones are not negotiable and should never be defended. That earns the standing to defend the challenge list.

Talk about what actually causes injuries. Falls to the surface dominate public playground injury data, and surfacing performance and maintenance are the factors most consistently in play. The relationship between how exciting a feature looks and how often it injures a child is far weaker than most committees assume. Be careful here: the data on playground injury has real limits, and injury statistics sets out what can and cannot be concluded from it. Overstating the evidence loses the room.

Point at the alternative. The comparison is not between a challenging playground and no injuries. It is between a challenging playground and children climbing something that was not designed for climbing, on ground that was not rated for a fall.

Where the line sits in practice

Practical, defensible positions for a US public site:

• Height: acceptable when graduated and when surfacing is rated across the whole use zone at the measured fall height.
• Speed: acceptable. Slides and swings are standard equipment with established clearances.
• Elements: water and sand are acceptable and underused. See nature play for how to detail them.
• Rough and tumble: a supervision and space question, not an equipment question.
• Tools: staffed settings only.
• Getting lost: usually refused, but partial screening and enclosed spaces give much of the benefit while keeping sight lines.

Age zoning does more work here than any other single control. A feature that is a reasonable challenge for a nine year old can be a hazard for a three year old purely because the younger child cannot judge it. Age appropriate design covers the separation, and climbers covers what graduated difficulty looks like in hardware.

What to do next

Write one risk benefit record for the most contested feature on your site before the next meeting. One page, five headings, signed. Then take the hazard list seriously enough to schedule it: an accepted risk and an unrepaired defect look identical to everyone except you, until something happens.

If you are consulting the public, run the hazard and challenge distinction as the opening frame rather than an afterthought. Community engagement covers how to structure that conversation so it does not collapse into a list of things people are frightened of.