Road traffic safety


Road traffic safety refers to the methods and measures used to prevent road users from being killed or seriously injured. Typical road users include pedestrians, cyclists, motorists, vehicle passengers, horse riders, and passengers of on-road public transport.
Best practices in modern road safety strategy:
As sustainable solutions for all classes of road safety have not been identified, particularly low-traffic rural and remote roads, a hierarchy of control should be applied, similar to classifications used to improve occupational safety and health. At the highest level is sustainable prevention of serious injury and death crashes, with sustainable requiring all key result areas to be considered. At the second level is real-time risk reduction, which involves providing users at severe risk with a specific warning to enable them to take mitigating action. The third level is about reducing the crash risk which involves applying the road-design standards and guidelines, improving driver behavior and enforcement.
Traffic safety has been studied as a science for more than 75 years.

Background

are one of the world's largest public health and injury prevention problems. The problem is all the more acute because the victims are overwhelmingly healthy before their crashes. According to the World Health Organization, more than 1 million people are killed on the world's roads each year. A report published by the WHO in 2004 estimated that some 1.2 million people were killed and 50 million injured in traffic collisions on the roads around the world each year and was the leading cause of death among children 10–19 years of age. The report also noted that the problem was most severe in developing countries and that simple prevention measures could halve the number of deaths.
The standard measures used in assessing road safety interventions are fatalities and killed or seriously injured rates, usually per billion passenger kilometres. Countries caught in the old road safety paradigm, replace KSI rates with crash rates – for example, crashes per million vehicle miles.
Vehicle speed within the human tolerances for avoiding serious injury and death is a key goal of modern road design because impact speed affects the severity of injury to both occupants and pedestrians. For occupants, Joksch found the probability of death for drivers in multi-vehicle collisions increased as the fourth power of impact speed. Injuries are caused by sudden, severe acceleration ; this is difficult to measure. However, crash reconstruction techniques can estimate vehicle speeds before a crash. Therefore, the change in speed is used as a surrogate for acceleration. This enabled the Swedish Road Administration to identify the KSI risk curves using actual crash reconstruction data which led to the human tolerances for serious injury and death referenced above.
Interventions are generally much easier to identify in the modern road safety paradigm, whose focus is on the human tolerances for serious injury and death. For example, the elimination of head-on KSI crashes simply required the installation of an appropriate median crash barrier. Also, roundabouts, often with speed reducing approaches, encounter very few KSI crashes.
The old road safety paradigm of purely crash risk is a far more complex matter. Contributing factors to highway crashes may be related to the driver, the vehicle, or the road itself. Interventions may seek to reduce or compensate for these factors, or reduce the severity of crashes. A comprehensive outline of interventions areas can be seen in management systems for road safety. Study conducted in Finland revealed that the fatality risk is increased most when a collision type is either pedestrian or meeting of the vehicles.
In addition to management systems, which apply predominantly to networks in built-up areas, another class of interventions relates to the design of roadway networks for new districts. Such interventions explore the configurations of a network that will inherently reduce the probability of collisions.
Interventions for the prevention of road traffic injuries are often evaluated; the Cochrane Library has published a wide variety of reviews of interventions for the prevention of road traffic injuries.
For road traffic safety purposes it can be helpful to classify roads into three usages: built-up urban streets with slower speeds, greater densities, and more diversity among road users; non built-up rural roads with higher speeds; and major highways reserved for motor-vehicles, and which are often designed to minimize and attenuate crashes. Most injuries occur on urban streets but most fatalities on rural roads, while motorways are the safest in relation to distance traveled. For example, in 2013, German autobahns carried 31% of motorized road traffic while accounting for 13% of Germany's traffic deaths. The autobahn fatality rate of 1.9 deaths per billion-travel-kilometres compared favorably with the 4.7 rate on urban streets and 6.6 rate on rural roads.
Road ClassInjury CrashesFatalitiesInjury RateFatality RateFatalities per 1000 Injury Crashes
Autobahn18,452428821.923.2
Rural73,0031,9342496.626.5
Urban199,6509779584.74.9
Total, Average291,1053,3994014.611.6

Mortality

Mortality units

According to the WHO/IRTAD,

Mortality statistic

Within EU, road safety impact several locomotion mode.

Built-up areas

On neighborhood roads where many vulnerable road users, such as pedestrians and bicyclists can be found, traffic calming can be a tool for road safety. Though not strictly a traffic calming measure, mini-traffic circles implanted in normal intersections of neighbourhood streets have been shown to reduce collisions at intersections dramatically. Shared space schemes, which rely on human instincts and interactions, such as eye contact, for their effectiveness, and are characterised by the removal of traditional traffic signals and signs, and even by the removal of the distinction between carriageway and footway, are also becoming increasingly popular. Both approaches can be shown to be effective.
For planned neighbourhoods, studies recommend new network configurations, such as the Fused Grid or 3-Way Offset. These layout models organize a neighbourhood area as a zone of no cut-through traffic by means of loops or dead-end streets. They also ensure that pedestrians and bicycles have a distinct advantage by introducing exclusive shortcuts by path connections through blocks and parks. Such a principle of organization is referred to as "Filtered Permeability" implying a preferential treatment of active modes of transport. These new patterns, which are recommended for laying out neighbourhoods, are based on analyses of collision data of large regional districts and over extended periods. They show that four-way intersections combined with cut-through traffic are the most significant contributors to increased collisions.
Modern safety barriers are designed to absorb impact energy and minimize the risk to the occupants of cars and bystanders. For example, most side rails are now anchored to the ground, so that they cannot skewer a passenger compartment. Most light poles are designed to break at the base rather than violently stop a car that hits them. Some road fixtures such as signs and fire hydrants are designed to collapse on impact. authorities have removed trees in the vicinity of roads; while the idea of "dangerous trees" has attracted a certain amount of skepticism, unforgiving objects such as trees can cause severe damage and injury to errant road users. Safety barriers can provide some combination of physical protection and visual protection depending on their environment. Physical protection is important for protecting sensitive building and pedestrian areas. Visual protection is necessary to alert drivers to changes in road patterns.
Most roads are cambered, that is, made so that they have rounded surfaces, to reduce standing water and ice, primarily to prevent frost damage but also increasing traction in poor weather. Some sections of road are now surfaced with porous bitumen to enhance drainage; this is particularly done on bends. These are just a few elements of highway engineering. As well as that, there are often grooves cut into the surface of cement highways to channel water away, and rumble strips at the edges of highways to rouse inattentive drivers with the loud noise they make when driven over. In some cases, there are raised markers between lanes to reinforce the lane boundaries; these are often reflective. In pedestrian areas, speed bumps are often placed to slow cars, preventing them from going too fast near pedestrians.
Poor road surfaces can lead to safety problems. If too much asphalt or bituminous binder is used in asphalt concrete, the binder can 'bleed' or flush' to the surface, leaving a very smooth surface that provides little traction when wet. Certain kinds of stone aggregate become very smooth or polished under the constant wearing action of vehicle tyres, again leading to poor wet-weather traction. Either of these problems can increase wet-weather crashes by increasing braking distances or contributing to loss of control. If the pavement is insufficiently sloped or poorly drained, standing water on the surface can also lead to wet-weather crashes due to hydroplaning.
Lane markers in some countries and states are marked with cat's eyes, Botts' dots or reflective raised pavement markers that do not fade like paint. Botts dots are not used where it is icy in the winter, because frost and snowplows can break the glue that holds them to the road, although they can be embedded in short, shallow trenches carved in the roadway, as is done in the mountainous regions of California.
Road hazards and intersections in some areas are now usually marked several times, roughly five, twenty, and sixty seconds in advance so that drivers are less likely to attempt violent manoeuvres.
Most road signs and pavement marking materials are retro-reflective, incorporating small glass spheres or prisms to more efficiently reflect light from vehicle headlights back to the driver's eyes.

Turning across traffic

Turning across traffic poses several risks. The more serious risk is a collision with oncoming traffic. Since this is nearly a head-on collision, injuries are common. It is the most common cause of fatalities in a built-up area. Another major risk is involvement in a rear-end collision while waiting for a gap in oncoming traffic.
Countermeasures for this type of collision include:
In the absence of these facilities as a driver about to turn:
There is no presumption of negligence which arises from the bare fact of a collision at an intersection, and circumstances may dictate that a left turn is safer than to turn right. The American Association of State Highway Transportation Officials recommends in their publication Geometric Design of Highways and Streets that left or right turns are to be provided the same time gap. Some states have recognized this in statute, and a presumption of negligence is only raised because of the turn if and only if the turn was prohibited by an erected sign.
Turns across traffic have been shown to be problematic for older drivers.

Designing for pedestrians and cyclists

Pedestrians and cyclists are among the most vulnerable road users and in some countries constitute over half of all road deaths. Interventions aimed at improving safety of non-motorised users:
American passive traffic safety measures which were adopted in the mid-20th century created roadways which were forgiving to motorists traveling at high speeds but which de-prioritized cycling and pedestrian facilities. Passive traffic safety policies led to excessively wide streets, clear zones adjacent to roadways, wide turn radii and a focus on protecting drivers from the consequences of high speeds. Passive traffic safety measures sought to avoid influencing the behavior of drivers while giving automobiles maximum convenience. Recent complete street policies seek to create design-oriented traffic safety improvements which actively slow drivers down by narrowing roadways while better accommodating pedestrians and cyclists.
Pedestrians' advocates question the equitability of schemes if they impose extra time and effort on the pedestrian to remain safe from vehicles, for example overbridges with long slopes or steps up and down, underpasses with steps and addition possible risk of crime and at-grade crossings off the desired crossing line. Make Roads Safe was criticised in 2007 for proposing such features. Successful pedestrian schemes tend to avoid over-bridges and underpasses and instead use at-grade crossings close to the intended route. Successful cycling schemes by contrast avoid frequent stops even if some additional distance is involved, because cyclists expend more energy when starting off.
In Costa Rica 57% of road deaths are pedestrians. However, a partnership between AACR, Cosevi, MOPT and iRAP has proposed the construction of 190 km of pedestrian footpaths and 170 pedestrian crossings which could save over 9000 fatal or serious injuries over 20 years. In Robert Beadles' book, He outlines why it is so important to have traffic control and why it is the most important aspect of keeping citizens safe on a motorway, "Correct traffic control and road traffic safety is vital to keeping communities safe and people in our neighborhoods safe from danger."
along a fully segregated Fietspad, properly designed cycling infrastructure in Amsterdam.

Shared space

By 1947 the Pedestrians' Association was suggesting that many of the safety features being introduced were potentially self-defeating because "every nonrestrictive safety measure, however admirable in itself, is treated by the drivers as an opportunity for more speeding, so that the net amount of danger is increased and the latter state is worse than the first."
During the 1990s a new approach, known as 'shared space' was developed which removed many of these features in some places has attracted the attention of authorities around the world. The approach was developed by Hans Monderman who believed that "if you treat drivers like idiots, they act as idiots" and proposed that trusting drivers to behave was more successful than forcing them to behave. Professor John Adams, an expert on risk compensation suggested that traditional traffic engineering measures assumed that motorists were "selfish, stupid, obedient automatons who had to be protected from their own stupidity" and non-motorists were treated as "vulnerable, stupid, obedient automatons who had to be protected from cars – and their own stupidity".
Reported results indicate that the 'shared space' approach leads to significantly reduced traffic speeds, the virtual elimination of road casualties, and a reduction in congestion. Living streets share some similarities with shared spaces. The woonerven also sought to reduce traffic speeds in community and housing zones by the use of lower speed limits enforced by the use of special signage and road markings, the introduction of traffic calming measures, and by giving pedestrians priority over motorists.

Non built-up areas

Roads outside built-up area also known as rural roads not including motorways are roads which are not classified as urban road and which are not classified as motorway.
In the European Union, this is the kind of road with most people killed 54,3% in 2015, more than inside urban area 36.8%. However such number might change country by country.
Fatalities of the rural road comes of the many collision due to the many dangers that exist on such roads, and the important energy involved in those collision due to the practiced speeds. In contrast, risks of collision are less numersous on motorways, and speeds are lower on rural roads.

Major highways

Major highways including motorways, freeways, Autobahnen and interstates are designed for safer high-speed operation and generally have lower levels of injury per vehicle km than other roads; for example, in 2013, the German autobahn fatality rate of 1.9 deaths per billion-travel-kilometers compared favorably with the 4.7 rate on urban streets and 6.6 rate on rural roads.
Safety features include:
The ends of some guard in rails on high-speed highways in the United States are protected with impact attenuators, designed to gradually absorb the kinetic energy of a vehicle and slow it more gently before it can strike the end of the guard rail head on, which would be devastating at high speed. Several mechanisms are used to dissipate kinetic energy. Fitch Barriers, a system of sand-filled barrels, uses momentum transfer from the vehicle to the sand. Many other systems are tear or deform steel members to absorb energy and gradually stop the vehicle.
In some countries major roads have "tone bands" impressed or cut into the edges of the legal roadway, so that drowsing drivers are awakened by a loud hum as they release the steering and drift off the edge of the road. Tone bands are also referred to as "rumble strips", owing to the sound they create. An alternative method is the use of "Raised Rib" markings, which consists of a continuous line marking with ribs across the line at regular intervals. They were first specially authorised for use on motorways as an edge line marking to separate the edge of the hard shoulder from the main carriageway. The objective of the marking is to achieve improved visual delineation of the carriageway edge in wet conditions at night. It also provides an audible/vibratory warning to vehicle drivers, should they stray from the carriageway, and run onto the marking.
Better motorways are banked on curves to reduce the need for tire-traction and increase stability for vehicles with high centers of gravity.
An example of the importance of roadside clear zones can be found on the Isle of Man TT motorcycle race course. It is much more dangerous than Silverstone because of the lack of runoff. When a rider falls off at Silverstone, he slides along slowly losing energy, with minimal injuries. When he falls off in the Manx, he impacts violently with trees and walls. Similarly, a clear zone alongside a freeway or other high speed road can prevent off-road excursions from becoming fixed-object crashes.
The US has developed a prototype automated roadway, to reduce driver fatigue and increase the carrying capacity of the roadway. Roadside units participating in future Wireless vehicle safety communications networks have been studied.
Motorways are far more expensive and space-consumptive to build than ordinary roads, so are only used as principal arterial routes. In developed nations, motorways bear a significant portion of motorized travel; for example, the United Kingdom's 3533 km of motorways represented less than 1.5% of the United Kingdom's roadways in 2003, but carry 23% of road traffic.
The proportion of traffic borne by motorways is a significant safety factor. For example, even though the United Kingdom had a higher fatality rates on both motorways and non-motorways than Finland, both nations shared the same overall fatality rate in 2003. This result was due to the United Kingdom's higher proportion of motorway travel.
Similarly, the reduction of conflicts with other vehicles on motorways results in smoother traffic flow, reduced collision rates, and reduced fuel consumption compared with stop-and-go traffic on other roadways.
The improved safety and fuel economy of motorways are common justifications for building more motorways. However, the planned capacity of motorways is often exceeded in a shorter timeframe than initially planned, due to the under estimation of the extent of the suppressed demand for road travel. In developing nations, there is significant public debate on the desirability of continued investment in motorways.
With effect from January 2005 and based primarily on safety grounds, the UK's Highways Agency's policy is that all new motorway schemes are to use high containment concrete step barriers in the central reserve. All existing motorways will introduce concrete barriers into the central reserve as part of ongoing upgrades and through replacement as and when these systems have reached the end of their useful life. This change of policy applies only to barriers in the central reserve of high speed roads and not to verge side barriers. Other routes will continue to use steel barriers.
More people die on the hard shoulder than on the highway itself. Without other vehicles passing a parked car, following drivers are unaware that the vehicle is parked, despite hazard lights. Truck drivers indicate that they are parked by putting their cab seat behind their truck. In the UK, the AA and police park their vehicles on the hard shoulder at a slight angle so that following drivers can see down the side of their vehicle and are therefore aware that they are stopped.
30% of highway crashes occur in the vicinity of toll collection booths in the countries that have them, these can be reduced by switching to electronic toll systems.

Vehicle safety

Safety can be improved in various ways depending on the transport taken.

Buses and coaches

Safety can be improved in various simple ways to reduce the chance of a crash occurring. Avoiding rushing or standing in unsafe places on the bus or coach and following the rules on the bus or coach itself will greatly increase the safety of a person travelling by bus or coach. Various safety features can also be implemented into buses and coaches to improve safety including safety bars for people to hold onto.
The main ways to stay safe when travelling by bus or coach are as follows:
Safety can be improved by reducing the chances of a driver making an error, or by designing vehicles to reduce the severity of crashes that do occur. Most industrialized countries have comprehensive requirements and specifications for safety-related vehicle devices, systems, design, and construction. These may include:
- Use far hand on handle when opening to avoid dooring cyclists or injuries to exiting drivers and passengers.
Motorists and passengers – both front and rear – can make dooring less likely by practicing the "Dutch reach" – opening the car door by reaching across the body with the more distant hand.

Motorbikes

UK road casualty statistics show that motorcycle riders are nine times more likely to crash, and 17 times more likely to die in a crash, than car drivers. The higher fatality risk is due in part to the lack of crash protection, combined with the high speeds motorcycles typically travel at. According to US statistics, the percentage of intoxicated motorcyclists in fatal crashes is higher than other riders on roads. Helmets also play a major role in the safety of motorcyclists. In 2008, The National Highway Traffic Safety Administration estimated the helmets are 37 percent effective in saving lives of motorcyclists involved in crashes.

Trucks

According to the European Commission Transportation Department "it has been estimated that up to 25% of accidents involving trucks can be attributable to inadequate cargo securing". Improperly-secured cargo can cause severe crashes and lead to loss of cargo, loss of lives, loss of vehicles, and can be a hazard for the environment. One way to stabilize, secure, and protect cargo during transportation on the road is by using dunnage bags, which are placed in the voids among the cargo and are designed to prevent the load from moving during transport.
Together for Safer Roads has developed best practices for implementing corporate road safety programs that includes data management and analysis, route mapping, investment and upkeep of fleets, safety policies and training for employees, and first-aid/safety training in case collisions do occur.

Police

Hundreds of people are killed each year due to high-speed chases of fleeing suspects by police. Different jurisdictions allow such pursuits in different circumstances; fewer injuries might occur if these are restricted to violent felonies.
Road Safety Maha Walkathon : Maha Walkathon is an Annual event jointly organised by Maharashtra Motor Vehicle Department, Public Works Department, CASI Global and CSR Diary across the state of Maharashtra to spread awareness on Road Safety - No Honking - Responsible Driving.
Maha Walkathon 2018: 18 Nov 2018: More than 5 lakh participants across 503 different locations in Maharashtra.
Maha Walkathon 2019: Scheduled on 30 Nov 2019 @8 am across 1000 locations. Expected Participants: 10 Lakh.
More details on #Roadsafety Maha Walkathon can be found on the official Maharashtra Transport Department Website

Regulation of road users

Various types of road user regulations are in force or have been tried in most jurisdictions around the world, some these are discussed by road user type below.

Motor vehicle users

Dependent on jurisdiction, driver's age, road type and vehicle type, motor vehicle drivers may be required to pass a driving test, conform to restrictions on driving after consuming alcohol or various drugs, comply with restrictions on use of mobile phones, be covered by compulsory insurance, wear seat belts and comply with certain speed limits. Motorcycle riders may additionally be compelled to wear a motorcycle helmet. Drivers of certain vehicle types may be subject to maximum driving hour regulations.
Some jurisdictions, such as the US states Virginia and Maryland, have implemented specific regulations such as the prohibiting mobile phone use by, and limiting the number of passengers accompanying, young and inexperienced drivers. The State of Safety Report from the National Safety Council released in 2017 ranks states on these road safety regulations. It has been noticed that more serious collisions occur at night, when vehicles are more likely to have multiple occupants, and when seat belts are less likely to be used.
The Insurance Institute for Highway Safety proposes restrictions for new drivers, including a "curfew" imposed on young drivers to prevent them driving at night, an experienced supervisor to chaperone the less experienced driver, forbidding the carrying of passengers, zero alcohol tolerance, raising the standards required for driving instructors and improving the driving test, vehicle restrictions, a sign placed on the back of the vehicle to notify other drivers of a novice driver and encouraging good behaviour in the post-test period.
While government has primary responsibility for providing safe roads, the challenges of development and equity require that all segments of society engage and contribute, including the private sector. Private and public sector coalitions, like Together for Safer Roads and the Road to Zero Coalition exist to work alongside government policies to advance the business case of having safer roads; they help companies meet their duty of care to employees and minimize fleet-related dangers to the wider community. Safer roads also benefit business by improving employee health and safety, by protecting assets, reducing productivity losses and healthcare costs, and enhancing the efficiency and effectiveness of supply chains.
Some countries or states have already implemented some of these ideas through Vision Zero networks. Pay-as-you-drive adjusts insurance costs according to when and where the person drives.

Pedal bicycle users

Dependent on jurisdiction, road type and age, pedal cyclists may be required conform to restrictions on driving after consuming alcohol or various drugs, comply with restrictions on use of a
mobile phones, be covered by compulsory insurance, wear a bicycle helmet and comply with certain speed limits.

Pedestrians

Dependent on jurisdiction, jaywalking may be prohibited. The frequent road safety education for the children helps to improve the dangerous behaviors.

Animals

Collisions with animals are usually fatal to the animals, and occasionally to drivers as well.

Information campaigns

Information campaigns can be used to raise awareness of initiatives designed to reduce road casualty levels. Examples include:

Rating roads for safety

Since 1999 the EuroRAP initiative has been assessing major roads in Europe with a road protection score. This results in a star rating for roads based on how well its design would protect car occupants from being severely injured or killed if a head-on, run-off, or intersection crash occurs, with 4 stars representing a road with the best survivability features. The scheme states it has highlighted thousands of road sections across Europe where road-users are routinely maimed and killed for want of safety features, sometimes for little more than the cost of safety fencing or the paint required to improve road markings.
There are plans to extend the measurements to rate the probability of an collision for the road. These ratings are being used to inform planning and authorities' targets. For example, in Britain two-thirds of all road deaths in Britain happen on rural roads, which score badly when compared to the high quality motorway network; single carriageways claim 80% of rural deaths and serious injuries, while 40% of rural car occupant casualties are in cars that hit roadside objects, such as trees. Improvements in driver training and safety features for rural roads are hoped to reduce this statistic.
The number of designated traffic officers in the UK fell from 15–20% of police force strength
in 1966 to seven per cent of force strength in 1998, and between 1999 and 2004 by 21%. It is an item of debate whether the reduction in traffic collisions per 100 million miles driven over this time has been due to robotic enforcement.
In the United States, roads are not government-rated, for media-releases and public knowledge on their actual safety features. However, in 2011, the National Highway Traffic Safety Administration's Traffic Safety Facts found that over 800 persons were killed across the US by "non-fixed objects" that includes roadway debris. California had the highest number of total deaths from those crashes; New Mexico had a best chance for an individual to die from experiencing any vehicle-debris crash.

KSI">Killed or Seriously Injured">KSI statistics

According to WHO in 2010 it was estimated that 1.24 million people were killed worldwide and 50 million more were injured in motor vehicle collisions. Young adults aged between 15 and 44 years account for 59% of global road traffic deaths. Other key facts according to the WHO report are:
It is estimated that motor vehicle collisions caused the death of around 60 million people during the 20th century, around the same number of World War II casualties.
As the comparatively poor improvements in pedestrian safety have become a concern at OECD level, the Joint Transport Research Centre of OECD and the International Transport Forum convened an international expert group and published a report entitled ”Pedestrian Safety, Urban Space and Health in 2012”.
According to BITRE/Australia agency changes in growth in population, vehicle registration, and estimated vehicle kilometres travelled have various impact on death trend from OECD countries.
According to the OECD's International Transport Forum, in 2013 the key figures among their 37 member states and observer countries looked like the following:
CountryDeaths per
1 million inhabitants		Deaths per
10 billion vehicle-km		Deaths per
100 000 registered vehicles		Registered vehicles per 1 000 inhabitantsSeatbelt wearing rates Front / Rear speed limit
urban / rural / motorways
123n.a.2352952%,45% / 19%,45%30–60 / 110 / 130
5150775197% / 96%50, 60–80 / 100 or 110 / 110
5458871089% / 77%50 / 100 / 130
65711062786% / 63%,79%30–50 / 70–90 / 120
143n.a.7815117% / n.a.40 / 90 / n.a.
5556964495% / 95% 40–70 / 80–90 / 100–110
120n.a.5023762,78% / 15%50 / 100–120 / 120
621571156097% / 66%50 / 90 / 130
3439652394% / 81%50 / 80 / 130
4848772595% / 87%50 / 80 100 / 120
5158864798% / 84%,90%50 / 90 / 130
4146665196–98% / 97,98%50 / 100 / no limit or 130
79n.a.1172677%,74% / 23%50 / 90 / 130
60n.a.1636687% / 57%,90%50 / 90 / 130
4747683084% / 65%50 / 90 / n.a.
4140854192% / 88%,91%50 / 80 or 100 / 120
3454935297% / 74%50,70 / 80,90,100 / 110
57n.a.782164%–76% / 10%50 / 90–110 / 130
122n.a.8713044% / very low 50 / 50 / 70 or 110
4069665796%,94% / 61%40,50,60 / 50,60 / 100
87n.a.1176695% / 33%50 / 90 / 120 or 130
84n.a.1177180% / n.a.50 / 90 / 130
2311222979282%,68% / 9%50 / 90 / 110
116n.a.11710049%,46% / n.a.50 / 100 / 120
3445553797% / 82%50 / 80 / 130
5763873497% / 92%,93%50 / 100 / 100
3743570795% / 87–88%30,50 / 80 / 90,100,110
87n.a.1463690% / 71%,89%50 / 90–120 / 140
61n.a.1155196% / 77%,89-100%50 / 90 / 120
12420135353n.a.60 / 90 / 110 or 130
91n.a.3029970% / 4%50 / 80 / 120
61721063894% / 66%,87-94%50 / 90 / 130
1011722345089%,75% / 22% 60 / 60–80 / 110
36n.a.566290% / 81%50 / 90 or 100 / 120
2734559797% / 81%,95%30,40,50 / 60,70,80,90,100 / 110 or 120
3343570894%,93% / 77%,93%50 / 80 / 120
2835555196% / 92%48 / 96 or 113 / 113
103681285287% / 74%set by state / set by state / 88–129

Time effect

Traveled distance effect

In some countries, the safety is computed mixing two metrics: the fatalities and the traveled distance, to establish fatalities by traveled distance.
USA Fatalities vs VMTUSA Fatalities compared to VMT
In the US, between 1994 and 2007, VMT increased by 28% while fatalities remains stable variation

Between 2007 and 2009, VMT decreased by 2% while fatalities decreased by 20%

Since 2009, VMT increased by 4%, while fatalities increased by 3%,		In the US, Distance safely traveled by fatalities increase with distance increase.
* Source NHTSA.
UK Fatalities vs VMTUK VMT compared to fatalities
Till 1966, in the UK, fatalities have increased in the same time that traveled distance increased.
Since 1966, fatalities have decreased in the same time that traveled distance increased.		In the UK, traveled distance by fatalities has regularly increased, even when traveled distance decreased.

According to the BITRE, traveled distance has a limited impact on death trend from OECD countries.

Advocacy groups

was established in 1905 in the United Kingdom to help motorists avoid police speed traps. They became involved in other safety issues and also erected thousands of roadside warning signs.
The Pedestrians Association in the United Kingdom was formed in 1929 to press for better road safety. Other groups have been active in other countries.
The International Road Federation has an issue area and working group dedicated to road safety. They work with their membership to advocate measures that improve road safety through infrastructure and cooperation with other international organizations.
Motoring advocacy groups including the Association of British Drivers, Speed cameras.org, National Motorists Association argue that the strict enforcement of speed limits does not necessarily result in safer driving, and may even have negative effect on road safety in general. Safe Speed is a UK group set up specifically to campaign against the use of Speed cameras. The Association of British Drivers also argues that speed humps result in increased air pollution, increased noise pollution, and even unnecessary vehicle damage.
Together for Safer Roads is a coalition that brings together global private sector companies, across industries, to collaborate on improving road safety. TSR brings together members’ knowledge, data, technology, and global networks to focus on five road safety areas with the goal of bringing about the greatest impact globally and within local communities.
In 1965, Ralph Nader put pressure on car manufacturers in his book Unsafe at Any Speed, detailing resistance by car manufacturers to the introduction of safety features such as seat belts, and their general reluctance to spend money on improving safety. The GM President James Roche was later forced to appear before a United States Senate subcommittee, and to apologize to Nader for the company's campaign of harassment and intimidation. Nader later successfully sued GM for excessive invasion of privacy.
RoadPeace was formed in 1991 in the United Kingdom to advocate for better road safety and founded World Day of Remembrance for Road Traffic Victims in 1993 which received support from the United Nations General Assembly in 2005.