Security issue: Sexual assault

In a vast majority of the cases, victims of sexual assault are female

Sexual assault is assault of a sexual nature on another person, or any sexual act committed without consent. It includes (in most jurisdictions):

• Rape;
• Attempted rape;
• Child sexual abuse;
• Elderly sexual assault;
• Sexual harassment;
• Groping;
• Domestic violence; and
• Bestiality

Each of these categories are described in more detail in the Wikipedia page on sexual assault.

Description

In the context of the Securipedia, we will focus on sexual assault by strangers in the urban public space. This precludes domestic violence and (for all practical purposes) bestiality.

Almost all (93%) sexual assaults are commuted by men and the vast majority (86%) of the victims are female.

Rape is generally believed to be primarily motivated by the need of exerting power; forced sexual acts of various kinds are used to satisfy the variations of those needs. Power, anger, and control are the motives, and rape is the intent.

For female victims of sexual assault, the most frequently reported locations where the most recent assault had taken place were the victim’s own or another home (40%), and a public venue (37%), such as a place of entertainment, including car parks.

Contributing circumstances

Known circumstances to influence the likelihood or effect of assault, are presented in the table below:

Contributing Circumstance	Influence	Description
Use of alcohol and/or drugs.	Increases levels of vulnerability and aggression.	The use of alcohol, particularly in bars or other public places increases the risk of sexual assault in two ways. First, researchers believe alcohol decreases men’s inhibitions against using violence and increases their sexual interest, and thus their propensity to commit rape. Second, when women are intoxicated, they may pay less attention to cues that would normally alert them to potentially dangerous situations. As a result, they may fail to take precautions or may take risks that they would not otherwise take (e.g., walk home alone, accept a ride from a stranger). Further, a victim’s ability to resist an attack is compromised when she is intoxicated. In most cases of sexual assault by strangers where alcohol is involved, the victim voluntarily drinks and is not drugged or rendered intoxicated.
Presence of disabled women	Increases vulnerability.	Among developmentally disabled adults, as many as 83% of the females and 32% of the males are the victims of sexual assault. A study of North Carolina women found that women with disabilities were four times more likely to have experienced sexual assault in the past year than women without disabilities.
Abandoned/secluded areas and low traffic volumes (cars and/or pedestrians).	Decreases likelihood of detection.	A decreased perceived risk of detection decreases the perceived need for restraint of unwanted behaviour. Large, publicly accessible parkings are amongst the most popular locations for sexual assault.
Low level of social monitoring.	Decreases level of social correction.	A decreased perceived risk of detection and correction decreases the perceived need for restraint of unwanted behaviour.
Low level of physical monitoring (e.g. cameras).	Decreases likelihood of detection.	This reduces the possibilities of intervening and increases the likelihood of the conflict escalating. Low levels of physical monitoring contributes to less enforcement of the law, which undermines other efforts to prevent assault and other crimes occurring.
Long reaction times or inadequate action of reaction force.	Decreases likelihood of apprehension	Untimely or inappropriate reactions to violence lead to a perception of little control, which will increase perceived risk for the public and decrease perceived risk for the perpetrators. Also, reducing the impact of an assault (by timely intervention) will also be impossible and lead to greater effects of incidents.
High levels of unemployment	Increases likelihood of targeting	High levels of unemployment are correlated with higher levels of property crime .
High levels of sexual assault in the vicinity.	Increases likelihood of targeting.	The distance to known places where offenders live matters. On average, robbers travel 2,1 km to commit their crimes, and the chance of a neighbourhood to be chosen reduces with every km distance from the offender's home.
Incompatible zonings.	Increases of the likelihood of conflict.	Incompatible zonings, and activities therein, can increase the likelihood of vulnerable groups and potential offenders meeting. The composition and compatibility of adjoining land uses should be sufficiently considered by urban planners.
Low levels of social capital.	Likelihood of offences	A low level of social capital within the community (trust, friendliness, civic involvement, etc) often reflects in elevated street levels of crime, including (sexual) assault.
Presence of excitement.	Unknown	Places of entertainment are locations that are frequently reported in Sexual assaults.

Socio-economic causes

Together with alcohol consumption, poverty is one of the few socio-economic causes that increases the risk of vulnerable groups such as women, children, adolescents and homosexuals becoming victims of physical violence.

Impacts

Social impact

• There is at least a 50 percent likelihood that a woman will develop Post Traumatic Stress Disorder (PTSD) after being raped. Sexual assault is also closely associated with depression and anxiety disorders.
• Of adult American women who are raped, 31.5 percent are physically injured.

Economic impact

Sexual assault leads to considerable costs in both a direct (primary) and a indirect (secondary) way. Direct costs of sexual assaults come in the form of:

• Preventive costs in anticipation of sexual assaults (e.g. private security measures)
• Material and immaterial costs as a consequence of sexual assaults (e.g. physical damage, medical costs, mental harm); and
• Responsive costs to sexual assaults (e.g. the costs of detection and prevention, prosecution, support trial, etc.)

Other examples of immaterial costs of sexual assaults are:

• costs due to the emotional and physical impact on victims
• costs due to a loss of output
• the costs of victim Services.

The cost of rape and sexual assault, excluding child sexual assault, per criminal victimisation is $87,000 per year. For the victim, the average rape or attempted rape costs $5,100 in tangible, out-of-pocket expenses. According to a research study by AVA (Academy on Violence and Abuse), violence and abuse also have a negative impact on the long-term health care costs, as a result of more frequent or more severe health conditions such as heart disease, diabeters, back pain, stroke, mental illness etc. . This is an example of a secondary economic impact of crime.

Mobility impact

Vulnerable road users (pedestrians, cyclists) are also most vulnerable for sexual assault, since they have less protection around them and are less fast.

There might be a higher risk on sexual assault in dark streets and cul-de-sacs, since the probability to be seen is smaller, and in public transport stations, because of the large crowds of people. Also abduction and/or sexual assault may take place by dragging someone into a car or van. Parking places are also locations of higher risk on sexual assault.

Safety impact

In varying degrees, victims experience emotional, physical, social, and sexual problems as a result of being sexually assaulted. Some women suffer severe injuries, contract sexually transmitted diseases, or get pregnant. Nearly all women experience psychological anguish, and many experience Posttraumatic Stress Disorder at some point in their lives. In the short term, most women experience some combination of fear and anxiety; denial, shock, and disbelief; guilt, hostility, and blame; and feelings of helplessness or a loss of control. Longer-term effects may include disturbances in eating and sleeping; strained relationships with family, friends, and partners; difficulty maintaining employment; and sexual problems. Recovering from these effects requires support from helping professionals, friends, and family and may take a long time.. About one third of the victims of sexual assault suffers physical injuries.

Measures

Potential measures that can mitigate the risk of sexual assault and that can be taken or influenced by urban planners include:

• Directing traffic flows can be effective in separating potential offenders from vulnerable groups and/or locations less controlled or controllable. Providing safe access and exit routes to and from entertainment districts, by various modes (such as on foot, bycycle, bus) can reduce the number of opportunities for sexual assault.
• Surveillance can be effective as most researchers believe that sexual assaults take place in relatively isolated areas where the risk of intervention by bystanders is limited . A highly visible form of surveillance can raise the perceived risk and act as an inhibitor. Both electronic and natural surveillance and patrols can be effective.
• Reaction force is required to intervene and make surveillance effective.
• Target removal can be achieved by removing circumstances that make people vulnerable, such as women travelling alone in areas with little surveillance. Bar-closing hours can highly influence the amount and distribution of traffic over time and can for instance serve as a means to assure natural surveillance by providing a steady flow of traffic. Secluded areas make people more vulnerable to assault and should be avoided in the design of an area. By designing the road network such that traffic flows are spread over the whole area, secluded areas can be prevented. Traffic simulation models (e.g. Urban Strategy, Dynasmart) can help with this by estimating traffic flows for alternative road designs.
• Controlling disinhibitors such as alcohol can directly decrease the problem. A careful design with compatible land uses and activities is important.
• Creating awareness / stimulating conscience can act as an inhibitor, especially if adopted by the general public.
• Screening where possible and ethical, can act as an effective way to exclude known offenders.
• Access control should be employed in combination with screening to prevent unauthorised access.
• Although typically not within the control of a urban planner, target hardening can be effective when a specific group of people can be identified to be especially vulnerable. They can then be taught to defend themselves more effectively.