Aalborg Universitet Bike Infrastructures Report Silva, Victor ... - VBN

THE WEB SURVEY
The web survey analysis is divided in four sections. Firstly,
main findings are presented. The second section describes
the spatial distribution of the residential location
of the respondents. Thirdly, it is presented a descriptive
statistic to analyze all the answers. In search of finding relationships
between socio-demographic variables and the
web survey answers, the last section presents a statistical
analysis using the Chi2 test.
A total of 298 individuals that were riding a bike at Vestergade
Vest on September 14 answered the questionnaire
in the period between September 14 and October 12.
From the count done in September 14, there were 6446
bicycle trips at Vestergade Vest from 7am until 7pm – including
both directions. Estimating that 35% of these cyclists
ride their bikes at least once per day in the infrastructure,
it was stipulated a total of 4189 individuals ride
a bike at Vestergade Vest per day.
A total of 1328 web flyers were distributed to individuals
riding their bikes in the infrastructure from 7am until 7pm
and from these total 298 answered the questionnaire.
Based on these figures, the respondents represents
7,12% of the total of individuals riding a bike per day in
the infrastructure and 22,43% of individuals that collected
the flyer on September 14 while riding a bike.
MAIN FINDINGS
In conclusion the data from the survey reveals a picture
of Vestergade Vest as a piece of infrastructure used for a
balanced distribution of purposes (39% to work, 34% to
shopping, 15% educational institutions and 12% to others
destinations). The figures are directly connected to the
built environment were the infrastructure is located – the
core of the city with several working places, shops and
educational institutions in the surroundings.
After the Chi2 test was applied, the results highlight that
most of the answers do not have a relation with socio-demographic
conditions. However, some representative relations
between the independent variables – gender, age
and educational level – and the questionnaire answers
were identified.
There is a relation between the main trip purpose when
riding a bike at Vestergade Vest and both gender, age and
educational level.
The impact of the intervention in Vestergade Vest in the
individuals` decision to ride a bike more often has also a
relation both with gender, age and educational level.
The findings highlight that gender is a strategic variable
which has a relation with the satisfaction with the design
solution for Vestergade Vest, safety and signage conditions
at the infrastructure.
Finally, age seems to have a relation with the frequency
that individuals ride a bike at Vestergade Vest and their
opinion on regards obstacles against cyclists riding at the
infrastructure.
The following section provides the actual data for each of
the questions asked.
RESIDENTIAL LOCATION OF
RESPONDENTS
The residential addresses of the respondents – individuals
riding a bike at Vestergade Vest and Mageløs on
September 14 – were registered and geo-referenced in
order to produce a map (see Figure 3.37). According to
the Table 3.43, the majority of the respondents (65,9%)
live within a radius of 2 kilometer and 92,6% of them living
within 5 kilometers distance from the infrastructure.
Respondents living more than 5 kilometers from the infrastructure
correspond to 7,4% of the total and from this
amount only 14,2% are living more than 10 kilometers
away of the infrastructure.
0-1 KM 1-2 KM 2-3 KM 3-4 KM 4-5 KM 5-10 KM 10-15 15-20 20 KM<
KM KM
NO. DWELLINGS 134 62 42 20 17 19 1 2 1
% DWELLINGS 45,0% 20,8% 14,1% 6,7% 5,7% 6,4% 0,3% 0,7% 0,3%
Table 3.1.1: Absolute and percentage distribution of respondents according to the distance of their residential location from Vestergade Vest and Mageløs.
38 39