Page 136 - Proceeding of Atrans Young Researcher's Forum 2019_Neat

“Transportation for A Better Life:
Smart Mobility for Now and Then”

23 August 2019, Bangkok, Thailand

To study 9 2.9 2
Shopping/Entertainment/Dinning 105 33.8 3
Others 14 4.5 4

Detailed of two variables that were transformed into categorical variables are given in Table 2.

Table 2. Personal income and household income of interviewees

Variables Freq. (%) Preprocessing
Personal Income (VND*/month) X6
No income 39 12.5 1
Having income but < 3 mil. 20 6.4 2
3~6 mil. 78 25.1 3
6~10 mil. 118 37.9 4
10~20 mil. 43 13.8 5
20~30 mil. 9 2.9 6
30~40 mil. 0 0.0 7
40~50 mil. 3 1.0 8
Higher than 50 mil. 1 0.3 9
Household Income (VND/month) X7
No income 0 0.0 1
Having income but less than 3 mil. 5 1.6 2
3~6 mil. 23 7.4 3
6~10 mil. 79 25.4 4
10~20 mil. 114 36.7 5
20~30 mil. 59 19.0 6
30~40 mil. 20 6.4 7
40~50 mil. 3 1.0 8
Higher than 50 mil. 8 2.6 9

* The exchange rate (2019): 1USD = 23.330 VND

Table 3 represents the continuous variables extracted from survey and the corresponding minimal,
maximal and standard deviation values.

Table 3. Trip characteristics of interviewees
Variables Variables Min. Max. StD*
Trip length (km) X10 0.5 45 5.43
Trip cost (x 1000 VND) X11 0 450 42.22
On-vehicle duration (minutes) X12 0 120 14.52
Parking & walking duration (minutes) X13 0 53 5.05
Real parking charge (x 1000 VND) X14 0 40 5.74
Proposed parking charge (% of payment) X15 100 300 81.69

StD*=Standard Deviation mode that making some zero numbers in their trip
cost and on-vehicle duration. In many other cases of
Obtained from the interview results, there were motorcycle users, parking and walking duration was
a small quantity of people using walking as their trip zero since they parked their vehicles in front of the

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