3.2. Results from the questionnaire
Around 41% of participants declared that they do not use a car, compared to 37% of women who do not ride a bicycle in Turin. The tendency to use the car is age-dependent, as shown in the bar charts of
Figure 5, and it is aligned with previous studies [
10]: more than five-sixths (84%) of over 50 drive a car, in contrast with around two-sixths (35%) of 18-25 aged women.
Among women who own cars, small-sized vehicles were used by around half of respondents (46%). Half of respondents declared that their vehicle was powered by petrol, followed by diesel (20%) and LPG (18%). Cars were primarily used for short-distance travels, with three in fours of respondents driving 1-15 kilometers weekly.
The bicycle, instead, turned out to be a mode of transportation more homogeneously distributed across different travel distances. Approximately 23% of cyclists claimed to ride 1-15 kilometers weekly, while 5% cycled more than 60 kilometers every week.
As visualized in
Figure 6, the main factors that positively encourage women to cycle included the senses of comfort and empowerment, which had a high score of 4.5 on the 5-point scale. A moderate majority of women also cycle for physical exercise (score 3.8), convenience, and the ability to avoid parking problems. Environmental determinants, such as cycling to protect the environment and reduce air pollution, had a positive influence on women’s willingness to cycle (score 4.4). Also contributing to a more livable city obtained a large consensus among respondents. Saving money received one of the lowest scores compared to other factors (score 3.7).
Regarding aspects that negatively affect women’s decision to cycle (
Figure 7), security-related factors obtained higher means (3.8 on the 5-point scale) compared to perceived safety (2.9 on the 5-point scale).
Safety risks, defined as the perceived feeling of being threatened by something or someone, did not deter women from cycling significantly. Feeling safe on bike lanes due to potential verbal or physical harassment scored a mean of 2.5 out of 5. This factor did not negatively determine women’s choice to use the bicycle for over half of them, which differs from findings in other studies where safety concerns were more commonly perceived as a deterrent [
16,32].
On the other hand, security-related factors, referring to external threats that do not protect women, significantly affected their decision to cycle. Comparable results have been observed in the United States [
29], China [33], and England [
8]. In this study, it was found that bike lanes were not well-connected and evenly distributed throughout the city for almost two-thirds of women. More than three-fifths of respondents considered the car’s speed as a discouragement to cycling, and a similar percentage was affected by the poor structural lanes’ quality.
As shown in
Table 1, security and safety perceptions are partly age-dependent. Women aged 18-25 express higher concern for safety, with the mean score decreasing for those over 50. In contrast, individuals over 50 tend to feel more secure on bike lanes compared to 18-25 age generations.
Furthermore, other modes of transportation, such as electric scooter, bus, metro or walk, are not significantly preferred over the bike among women.
Respondents were also invited to indicate up to five preferred bike infrastructures or services to see implemented in Turin. These selections were made based on their multiple associated benefits and insights from prior analogous studies [
17,
24]. They are grouped into four topics of relevance:
Security, infrastructures designed to ensure a high level of security;
Facilities, those that facilitate the bike system’s accessibility;
Regreening, infrastructures that initiate a greenery process of public spaces;
Sensibilization, tools aimed at raising awareness on gender and sustainability issues.
As illustrated in the bar charts of
Figure 8, all the infrastructures and services related to security were the most preferred by women. This choice aligns with the findings from the Likert Scale, indicating that women are more inclined to cycle in a protected environment. The most preferred infrastructure was a physical separator between bike lanes and roads. Following closely was a bicycle app displaying the bike network and most secure roads, although its popularity varied with age, with a constant decrease as age increased.
Facilities designed to enhance the bike system’s accessibility were moderately appreciated. Differently from the other services that were equally chosen among nationalities, showers and changing rooms at work and school were chosen more by Italians (31%) compared to non-Italians (11%).
The car parking removal, chosen 91 times, reduces the space available for cars, while increasing public spaces for bike lanes, sidewalks and other common spaces. Bike corridors could also be locations for trees. This obtained 89 votes.
Lastly, posters aimed at raising awareness about gender and environmental issues alongside bike lanes were the least opted among all the bike infrastructure options, selected only 47 times.
The questionnaire also assessed the respondents’ willingness to change mobility behavior. The results in
Figure 9 show that 92% of respondents declared their willingness to use (more) the bicycles if the bike system better aligns with their needs. Among them, almost all the younger generations’ respondents (99%) were highly motivated to increase their travels made by bike, whereas 75% of those over 50 agreed. These results indicate that elderly people were the most reluctant to change their travel habits.
This study also examines the destinations or purposes for which women would be more inclined to cycle if a woman-friendly bike system is in place (see
Figure 10). Cycling activities can be grouped into two spheres: occupation and leisure.
Among the former, cycling to work was the most chosen destination towards which cycling (more). It was selected 204 times. Using the bike to go to school accounted for 77 votes, possibly influenced by the respondents’ age or by the fact that students already cycle in Turin.
Among leisure activities, recreational activities were the most chosen, followed by going outside with friends. Cycling for physical exercises and shopping were the least preferred purposes. Only 20 women would not be stimulated to cycle (more) in case of a woman-friendly bike system.
To summarize, a system that caters to women’s needs could incentivize pro-pleasure activities since leisure pursuits together got 368 votes out of 669. However, cycling for work is the main route that could see the highest increase in cycling participation.
3.3. Results from field-observations
During field-observation, it was observed that there were fewer cyclists, both men and women, on roads with sharing facilities with vehicles. Regarding the users’ gender (see
Figure 11), during the day both the women’s percentage and number riding the bike were higher where bike lanes were physically separated from the road. In bike-car shared roads, instead, the woman’s percentage was always lower than 40%. During the night, women’s percentage decreased compared to the numbers reached during the day. Only in streets frequented by few cars and passing at slow speed, the number of women was moderately high.
To summarize, physical separation and a slow car’s speed and car’s number were those infrastructures and factors that most increased the ratio of women to men, respectively during the day and the night.
Furthermore, field-observations provided insights into the kids’ number traveling by bike with their parents and alone during the day (see
Figure 12). No kids were observed during the night. The highest number of kids with or without their parents was observed in streets crossed by cars at a low-speed rate.
As for the parenthood’s gender, in total twelve women and eight men with kids on their bike seats were viewed. Whilst six kids were riding alone. The relative women’s percentage out of men with kids was always higher in separated lanes than in roads shared with cars. On the contrary, roads with no physical separations were more frequented by men with kids. Hence, results from field-observations showed that gender of cyclists bringing kids was influenced by the presence of a separator from roads.
3.4. Results from the vehicle-emission factor: air emission reduction in Turin
The study demonstrated that transitioning from vehicles to cycling in Turin has a notable impact on atmospheric emissions of CO
2, CH
4, N
2O. This shift can potentially reduce emissions by approximately one-third (see
Table 2). Nitrous oxide exhibited the highest reduction in percentage (33%), saving every week about 0.8*10-2 kilograms of pollutants released into the atmosphere. Carbon dioxide emission decreased by 500 kilograms per week, equivalent to a 31% reduction in current CO
2 emissions. Methane displayed the lowest reduction in percentage (29%).
According to data from the Regional Environmental Protection Agency [
27], Turin experiences weekly emissions of 15*106 kilograms of CO
2, 8.7*102 kilograms of CH
4 and 7.1*102 kilograms of N
2O from the private vehicle sector. The contribution of 360 respondents in reducing total emissions was calculated by comparing the values in
Table 2 with the IREA data (2022). Specifically, carbon dioxide emissions were reduced by 3.3*10-3% compared to the total CO
2 emitted in Turin. Methane decreased by 2.1*10-3% and Nitrous dioxide by 1.1*10-3%. These percentages apply to the target population of 360 respondents. However, women over 19 living in Turin are 387,430 [
25]. Considering that the total population over 19 years of age, including both men and women, in Turin is 731,182 and they contribute for 15*106 kilograms of CO
2 emissions every week [
27], the 387,430 women proportionally contribute to 7.9*106 kilograms of CO
2 weekly, equivalent to a 31% reduction. Methane emissions amounted to 4.6*102 kilograms every week, and with a 29% reduction, women potentially contribute to cutting 1.3*102 kilograms of CH
4 weekly. Lastly, N
2O emissions are reduced by 1.3*102 kilograms every week out of the total N
2O emitted by the woman population of Turin, equivalent to 3.8*102 kilograms.
In conclusion,
Figure 13 shows: on the left columns the current emissions of pollutants in Turin; and on the right columns a potential situation in which women over 19 in Turin contribute to cutting the CO
2, CH
4, N
2O emissions by respectively 31%, 29%, and 33%. These graphics maintained unchanged the contribution of men to the total amount of gas emitted into the atmosphere.