HOME

TheInfoList



OR:

High-visibility clothing, sometimes shortened to hi vis or hi viz, is any clothing worn that is highly luminescent in its natural matt property or a color that is easily discernible from any background. It is most commonly worn on the torso and arm area of the body. Health and safety regulations often require the use of high visibility clothing as it is a form of personal protective equipment. Many colors of high visibility vests are available, with yellow and orange being the most common examples. Colors other than yellow or orange may not provide adequate luminescence for conformity to standards such as ISO 20471. As a form of personal protective equipment, high-visibility clothing is worn to increase a person's visibility and therefore prevent accidents caused by persons not being seen. As a result, it is often worn in occupations where hazardous situations are created by moving vehicles or low lighting conditions. These occupations include railway and road workers, airport workers and emergency services. Cyclists and motorcyclists may also use high-visibility clothing to increase their visibility when operating amongst motor traffic. Hunters may be required to wear designated high-visibility clothing to prevent accidental shooting. Some reflective tapes used on high-visibility clothing can reflect as much as 82% of the source light, causing retinal damage. It is therefore recommended that aircraft pilots, professional truck/bus drivers, and operators of heavy machinery refrain from wearing highly reflective clothing while conducting their duties.


Effectiveness


Motorcyclists

The
Hurt Report The Hurt Report, officially ''Motorcycle Accident Cause Factors and Identification of Countermeasures'', was a motorcycle safety study conducted in the United States, initiated in 1976 and published in 1981. The report is named after its primary ...
found that very few motorcyclists involved in collisions wore high-visibility clothing, and that just over half of the collisions studied, nearly two-thirds of those involving another vehicle, were due to the motorist unintentionally violating the motorcyclist's right of way. "This dominant culpability of the driver of the other vehicle... emphasizes the special need for high contrast conspicuity for the motorcycle and rider." A New Zealand case-control study found that the population attributable risks were 33% for wearing no reflective or fluorescent clothing; one third of motorbike accidents might have been prevented by wearing high-visibility clothing.


Cyclists

Traffic risks to the cyclist are similar to those faced by motorcyclists, with the main differences being that bicycling speeds are typically lower, and the bicyclist wears less protective gear. In a 2009 study, most UK cyclists and almost all motorists believed that high-visibility clothing would increase cyclists' visibility. Almost all drivers agreed that cyclists need to wear reflective clothing in low lighting environments, whereas less than three-quarters of cyclists (72%) agreed, and less than half claimed that they always did so. A Cochrane Systematic Review of research evidence for the effectiveness of visibility aids (fluorescent and
retroreflective A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects radiation (usually light) back to its source with minimum scattering. This works at a wide range of angle of incidence, unlike a planar mirror, ...
clothing and equipment) was carried out by Kwan and Mapstone in 2006.Kwan I, Mapstone J. Interventions for increasing pedestrian and cyclist visibility for the prevention of death and injuries. Cochrane Database of Systematic Reviews 2006, Issue 4. Art. No.: CD003438. DOI: 10.1002/14651858.CD003438.pub2. The authors found 42 studies which collectively suggested that fluorescent clothing could increase the distance at which drivers could detect and then recognise cyclists in daylight conditions. The same review found evidence that retro-reflective materials worn by cyclists at night had a similar effect on driver perceptions. At that time there were no studies published that had actually demonstrated a reduction in collision crashes for bicyclists wearing
fluorescent Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form of luminescence. In most cases, the emitted light has a longer wavelength, and therefore a lower photon energy, tha ...
or
retroreflective A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects radiation (usually light) back to its source with minimum scattering. This works at a wide range of angle of incidence, unlike a planar mirror, ...
clothing whilst on public roads. A 2009 Australian study of drivers trying to see stationary cyclists on a closed circuit found that fluorescent vests (without retro-reflective stripes) were not a significant improvement on black clothing at night and that retro-reflective strips were more effective when attached to knees and ankles than on a more or less static jacket. A 2012 British case-control study showed a non-significant increase in the odds of a crash for users of reflective conspicuity aids whilst cycling. In 2014, a further case-control study conducted in Canada reported a decrease in the odds of a collision with a motor vehicle when wearing 'light' coloured (not specifically fluorescent) clothing in daylight but an increase in the odds of a collision for cyclists using fluorescent clothing (and lights) at night. The number of conspicuity aids used was positively associated with an increase in collision crash odds but a non-significant reduction in the likelihood of hospitalisation. A
randomized controlled trial A randomized controlled trial (or randomized control trial; RCT) is a form of scientific experiment used to control factors not under direct experimental control. Examples of RCTs are clinical trials that compare the effects of drugs, surgical te ...
was conducted in Denmark between 2012 and 2013. The study collected data from 6793 regular cyclists for a year. The results suggest that conspicuity enhancing jackets can reduce by 47% the risk of collisions with other road users that cause injury and 55% for those collisions involving a motor vehicle. The effect of the intervention was higher in winter compared to summer (56% vs 39%), in daylight (51% vs the overall effect 47%) and for those participants who reported 'high' use of the jackets vs 'low' use (60% vs 33%). The study was based on participants self-reporting data, and there was evidence of response bias, which the authors attempt to correct for, reducing the 47% figure to 38%. Since April 2013, New York City regulations require commercial cyclists, such as restaurant delivery persons or
bike messengers Bicycle messengers (also known as bike or cycle couriers) are people who work for courier companies (also known as messenger companies) carrying and delivering items by bicycle. Bicycle messengers are most often found in the central business dist ...
, to wear high visibility clothing while riding.


Rail workers in the United Kingdom

Experimental use of high-visibility clothing began in 1964 on the
Scottish Region of British Railways The Scottish Region (ScR) was one of the six regions created on British Railways (BR) and consisted of ex-London, Midland and Scottish Railway (LMS) and ex-London and North Eastern Railway (LNER) lines in Scotland. It existed from the creation ...
. Fluorescent orange jackets, known as "fire-flies", were issued to track workers on the Pollokshields to electrified section in Glasgow; they were later tried in other areas, such as Edinburgh,
Aberdeen Aberdeen (; sco, Aiberdeen ; gd, Obar Dheathain ; la, Aberdonia) is a city in North East Scotland, and is the third most populous city in the country. Aberdeen is one of Scotland's 32 local government council areas (as Aberdeen City), and ...
and
Inverness Inverness (; from the gd, Inbhir Nis , meaning "Mouth of the River Ness"; sco, Innerness) is a city in the Scottish Highlands. It is the administrative centre for The Highland Council and is regarded as the capital of the Highlands. Histori ...
. Train drivers operating in these areas were asked their opinion as to the effectiveness of the jackets. Following trials, high-visibility clothing was issued to engineering and other staff working on the electrified lines of the
London Midland Region of British Railways The London Midland Region (LMR) was one of the six regions created on the formation of the nationalised British Railways (BR), and initially consisted of ex-London, Midland and Scottish Railway (LMS) lines in England, Wales and Northern Irela ...
in 1965. It was thought to be more important due to the higher speeds of the newly electrified West Coast Main Line route from London Euston to
Birmingham Birmingham ( ) is a city and metropolitan borough in the metropolitan county of West Midlands in England. It is the second-largest city in the United Kingdom with a population of 1.145 million in the city proper, 2.92 million in the West ...
, Manchester and Liverpool. The first version was worn as a jerkin and was "visible at ... half a mile in normal weather conditions". Since then, features of high-visibility clothing such as the EN510 quick release standard and the EN471 and its successor EN ISO 20471:2013 high visibility standards, have improved the effectiveness and contributed to improved safety for rail workers and other staff. The specifications for Rail Industry Standard RIS-3279-TOM (fluorescent orange) high-visibility clothing suitable for use on
railways in the United Kingdom The United Kingdom consists of Great Britain and Northern Ireland, and previously consisted of Great Britain and the whole of Ireland. Rail transport systems developed independently on the two island masses of Great Britain and Ireland, an ...
are published by the
Rail Safety and Standards Board The Rail Safety and Standards Board (RSSB) is a British independent company limited by guarantee. Interested parties include various rail industry organisations, including Network Rail, train operating companies (TOCs), and rolling stock com ...
.


Standards


India

The latest Indian standards for High Visibility Warning Clothes - Specification is IS 15809 : 2017.


ANSI/ISEA

The
American National Standards Institute The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organi ...
published standard 107 for high-visibility clothing in 1999. The standard defines three classes of successively more-visible garments, to protect workers exposed to successively higher levels of risk from motor vehicles and
heavy equipment Heavy equipment or heavy machinery refers to heavy-duty vehicles specially designed to execute construction tasks, most frequently involving earthwork operations or other large construction tasks. ''Heavy equipment'' usually comprises five e ...
. The
International Safety Equipment Association The International Safety Equipment Association (ISEA) is a trade association of manufacturers of personal protective equipment and other safety equipment, with its offices in Arlington, Virginia. More than 100 companies are members. The ISEA is ...
developed the standard, with revisions in 2004, 2010 and 2015. The 207 standard has different requirements for fluorescent background material, specifically allowing for a shorter design that allows equipment belt access. It also includes many optional features, such as a 5-point breakaway design for easy removal, panels readily identifying the wearer as an emergency responder, and radio and badge holders.


Regulation (EU) 2016/425

A European Union directive which covers high-visibility clothing.


North American hunting regulations

Hunting laws in each state or province may require hunters to wear designated garments in
blaze orange Safety orange (also known as blaze orange, vivid orange, OSHA orange, hunter orange, or Caltrans orange) is a hue. Safety orange is used to set objects apart from their surroundings, particularly in complementary contrast to the azure colo ...
to prevent misidentification of humans as game animals, and resulting shooting accidents. The required total visible area and times of use vary by jurisdiction and by the type of hunting in the area. Hunting clothes are available in blaze orange
camouflage Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the b ...
, where the bright orange color is plainly visible to human eyes, but the shape of the hunter is broken up by irregular patterns to prevent identification as a threat by game animals such as deer, who cannot see the color.


ISO 20471

The International Organization for Standardization published standard ISO 20471 for high-visibility clothing in 2013.


Australia

Australian/New Zealand Standard - '
AS/NZS 4602.1:2011
'' High visibility safety garments Garments for high risk applications from Standards Australia. Part 1: Garments for high risk applications
Sample
of the standard. Safe Work Australia - genera
Personal Protective Equipment
guide including references to high visibility clothing Class D workwear is suited to daytime use in Australia.


Canada

Canadian Standards: '
Z96-15
- High-visibility safety apparel Canadian Center for Occupational Health and safety (CCOHS): Guid

"Requirements for high-visibility safety clothing for Canadian workers are found in the CSA Standard Z96-15 High-Visibility Safety Apparel".


Gallery


See also

* Safety yellow * Chartreuse yellow (also called ''neon yellow'') * Display (zoology) – High-visibility in nature * Retroglo * Retroreflector *
Retroreflective sheeting Retroreflective sheeting is flexible retroreflective material primarily used to increase the nighttime conspicuity of traffic signs, high-visibility clothing, and other items so they are safely and effectively visible in the light of an approach ...
* Safety orange *
Yellow vests movement The Yellow Vests Protests or Yellow Jackets Protests or Yellow Vests Revolution (french: Mouvement des gilets jaunes, ) are a series of populist, grassroots weekly protests in France that began on 17 November 2018. At first the protestors advoc ...


References


External links

{{Commons category
Understanding the updated ANSI/ISEA 107-2015 standard


* ttp://www.ihvca.org/ Working on creating a safer standard for high-visibility clothing. Safety clothing Yellow vests protests