## 3 Results
### Results of Risk Evaluations  
This section shows the results of the risk analysis for both environmental and accidental risks. Risk detection is derived from information retrieved from the literature ([38; 39; 40; 41; 42]) integrated with the results of the questionnaire (environmental risks) and workshops (accidental risks).  
In this way, it was possible to identify the main risks affecting people with autism in their living environments, as well as the rooms where environmental and accidental risks are most likely to happen (i.e., the kitchen and bathroom). As an example, spider plots with a probability and severity of risks in the kitchen of a typical dwelling are shown in Figures 4 and 5. Results regarding all the rooms of a typical dwelling are reported in spider plots in Appendix A (Figures A1 and A2).  
Figure 4: Probability and severity in the kitchen of a typical living environment: Environmental Risks.  
Figure 3: Overall sensitivity of people on the autism spectrum.  
Due to the higher impact reported in questionnaires (see previous paragraph), acoustic-related environmental risks show the highest values of severity. Nevertheless, shares of the population being sensitive to light, temperature, and odor exist; therefore, these elements should not be neglected in the development of autism-friendly living solutions. General casualties (electrical, fires, etc.), as well as events that are typically dangerous for people with autism (e.g., presence of bulky objects, access to medicines, self-harm), constitute accidental risks. An opposite tendency can be observed when analyzing environmental and accidental risks. Focusing on environmental risks (Figure 4), it can be seen that, although the severity of the events is low, the probability is always high (\(\geq 4\)). Conversely, focusing on accidental risks (Figure 5), it can be seen that when the severity of an event is low, its probability is high, and vice versa. Further discussion about these results is reported in [28].  
To further help to understand the priorities in the living environment design and monitoring (i.e., sensors needed to be integrated into the furniture), the information derived from the spider plots was interpreted in a MoSCoW matrix. The matrix with environmental and accidental risks in rooms (kitchen, living room, bedroom, bathroom, corridor, and storage room) is listed in Tables 1 and 2 (Appendix A).  
By adopting the MoSCoW scale, it was possible to identify the environmental risks to be monitored, e.g., in the kitchen. In this case, the only environmental risky event with a high priority (Must Have) is the sound environment. Conversely, the accidental risks to be monitored for the kitchen are the following: falls; access to and the presence of dangerous objects; injuries from dangerous objects; possible burns; the presence of cookers and the possibility of detecting their unattended ignition; fire and electrical risks; and the risk of asphyxiation and inhalation of dangerous gases and self-harm.  
Even though risks with lower severity are not to be underestimated either, this matrix can provide important information in the priority considerations for the dedicated design of safe environments for people on the autism spectrum, contributing to the development of the combined requirements (Figure 1) of the SENSHOME environment (crowd warning, sound, light, temperature, humidity, and air draft detection, IAQ, controlled compartments, home safety, solid buildings, and ceiling lamps).