Enlightening cyclists:an evaluation study of a bicycle light communication system aimed to support older cyclists in traffic interactions

In the Netherlands, older cyclists run an increased risk of bicyclecrashes. Critical factors are low-speed interactions, stopping, (dis)mounting,and potentially misjudging riding speeds. A Bicycle Light CommunicationSystem (BLCS) was therefore developed that displayed riding speed, braking,and turning intentions. In an experiment, 21 older and 20 younger cyclistsobserved BLCS-signals of a lead cyclist and estimated speeds of anapproaching cyclist, with and without BLCS. Interviews were conducted toassess general opinions on BLCS and its influence on cycling behaviour. In a small follow-up study, twelve older cyclists used a BLCS-bicycle oneweek to explore first user-impressions. The majority evaluated the BLCSpositively, mainly the turning indicator and brake light components, eventhough interpreting the speed signals was difficult. Although the first userimpressions revealed that the direction indicator does not influence selfreported balance (positively or negatively), the majority reported that theywould like to use a BLCS themselves

Keep cycling: how technology can support safe and comfortable cycling for older adults

In the Netherlands cycling is important, there are even more bicycles than people. For the older population, cycling is one of the most important physical activities to remain healthy and mobile. Cycling contributes positively to health, mobility, and quality of life and staying mobile is crucial for maintaining a social life. However, older cyclists (60+) also have a higher risk of falling with their bicycle and sustaining a serious injury, compared to younger cyclists. Injury jeopardizes the mobility of this person, with severe consequences, such as depression and feelings of loneliness. Hence, prevention of bicycle accidents of older cyclists is obviously necessary. In this thesis, the main aim was to investigate how technology can support safe and comfortable cycling to support the older cyclists (60+) in traffic. In Chapter 1, the key research topics of this thesis are described, as different factors affect cycling. The first topic covers the characteristics of older cyclists. The second topic focusses on technology related to the bicycle to support older cyclists; what are their wishes and requirements and specifically, how do older people respond to these types of technologies. The third topic covers the interaction of cyclists with other road-users and the communication with them. ‘Safe and comfortable’ cycling, emerges in the overlapping area between the three topics. The following objectives are described as part of the main aim. Objective 1: To investigate demographic, physical and mental characteristics of elderly cyclists, and to explore which factors are associated with self-reported cycling accidents in the Netherlands. Objective 2: To investigate how technology can support safe and comfortable cycling for the older population. Objective 3: To improve the interaction between older cyclists and other road-users with technology. This thesis has generated knowledge on characteristics of the older cyclist and how technology can support safe and comfortable cycling for the older adult. Several factors were associated with self-reported falling of the bicycle; age, mental impairments, being less than completely confident and living in a rural environment. To compensate for some of these physical and mental impairments, assistive technology was developed to support the older cyclists in traffic. These supportive technologies have potential to lead to more comfortable cycling for the older adult, as the supportive devices were evaluated very positively. The advantages for the older cyclist are promising