1. Task Force on Passenger Mobility Statistics 11 October 2018
Item 4.4. of the Agenda
2016 Eurostat Grant – Summary of results of 2016 proposals
Edita Omerzo, Transport and Communication Statistics Department
Snježana Kos, Transport and Communication Statistics Department

2. CONTENT Key concepts (data collection method, definitions, sample)
Response
Results
Promotion of the survey
Lessons learnt
Steps forward (plans)

3. 1. KEY CONCEPTS OF THE PILOT SURVEY
Data collection from 1st September 2017 till 5th December (CAPI method used)
The average duration of the interview per household was 23 minutes
Questionnaire: Household section, Vehicle section, Questions about trips 3

4. 2. KEY CONCEPTS OF THE PILOT SURVEY - DISTANCE
The pilot survey collected information on:
Short distance daily trips (0 – 300 km) and trips over 300 km (medium and long distance mobility)
Short distance trips – maximum four trips in the reference day (start and end point of trip, departure and arrival time, stages (maximum four), purpose, mode of transport, distance and travel time)
Trips over 300 km - one-day journeys in the last three months (start and end point, purpose of the journey, mode of transport, distance and travel time) – no stages

5. 3. KEY CONCEPTS OF THE PILOT SURVEY – SAMPLE AND FUA
The sample size: 4914 dwellings
The sample frame: Census of Population, Households and Dwellings 2011
The sample design is two-stage stratified design
The sample frame is divided into 6 strata which are defined according to statistical regions (NUTS2) and FUA (cities, commuting zones and non-urban areas)
Target population are persons aged living in private households
For urban definition is used the concept FUA. This includes a 7 core dense city centre of Zagreb, Split, Rijeka, Osijek, Slavonski Brod, Pula and Zadar and its commuting zones (settlements with at least 15% of their employed residents working in a particular city)

6. 4. KEY CONCEPTS OF THE PILOT SURVEY – TRIPS
The reference day is defined for 24 hours, from 4:00 am to 3:59 am of the next day,
Each respondent is asked only for one day (one working day or one non-working day, either a weekday either Saturday either Sunday or either official holiday)
For the trips over 300 km we were asking respondents about one-day journeys in the last three months

7. 5. KEY CONCEPTS OF THE PILOT SURVEY – DEFINITIONS
Trip – movement from origin to destination where the respondent has another activity
Stages – defined per vehicles
Travel time – waiting time recorded separate from the travel time and used for the sum of reporting indicators.
Travel purpose – „home trip” is not separate value
Main travel mode – travel mode used for the longest distance within a trip
Minimum trip distance – 100 meter (0.1 km)
Car occupancy – number of persons in a passenger car by all ages (under 15 years, between 15 and 84 years, 85 years and older)

8. 6. RESPONSE RATE Household response rate amounts 54,47%.
Out of 4914 dwellings/households, 2400 households and persons for reference population were interviewed.
FUA
selected addresses
eligible addresses
eligible addresses contacted
hh at contacted addresses
hh interviewed
eligible persons
eligible persons interviewed
eligibility rate
dwelling contact rate
hh response rate
person response rate
non-urban areas
2184
1945
1783
1278
3137
3042
0,89
0,92
0,66
0,64
cities
1638
1478
1305
582
1315
1280
0,90
0,88
0,39
0,38
commuting zones
1092
983
888
540
1436
1404
0,55
0,54
CROATIA
4914
4406
3976
2400
5888
5726
0,53
eligibility_rate = eligible_addresses/selected_addresses
dwelling_contact_rate = eligible_addresses_contacted/eligible_addresses
hh_response_rate = dwelling_contact_rate*hh_cooperation_rate
person_response_rate = dwelling_contact_rate*hh_cooperation_rate*person_cooperation_rate

9. 7. RESPONSE RATE – cont. COUNTY selected addresses eligible addresses
eligible addresses contacted
hh at contacted addresses
hh interviewed
eligible persons
eligible persons interviewed
hh response rate
Person
response rate
ZAGREBAČKA
312
279
243
147
408
401
52.69%
51.78%
KRAPINSKO-ZAGORSKA
114 94 84
262
259
73.68%
72.84%
SISAČKO-MOSLAVAČKA
150
142
135 79
184
169
55.63%
51.10%
KARLOVAČKA
120
105
253
252
78.33%
78.02%
VARAŽDINSKA
126
121 99 97
266
80.17%
KOPRIVNIČKO-KRIŽEVAČKA 90 83 82 69
194
83.13%
BJELOVARSKO-BILOGORSKA 96 88 85 49
122
115
55.68%
52.49%
PRIMORSKO-GORANSKA
474
450
441
136
322
313
30.22%
29.38%
LIČKO-SENJSKA 65 64 56
110
109
86.15%
85.37%
VIROVITIČKO-PODRAVSKA 72 62 52
124
83.87%
82.54%
POŽEŠKO-SLAVONSKA 60 41 86
78.85%
77.93%
BRODSKO-POSAVSKA
137
123
218
207
64.23%
60.99%
ZADARSKA
240
163 73
188
180
44.79%
42.88%
OSJEČKO-BARANJSKA
300
276
154
381
371
55.80%
54.33%
ŠIBENSKO-KNINSKA
198
106
234
221
65.03%
61.42%
VUKOVARSKO-SRIJEMSKA
141
132
264
255
78.01%
75.35%
SPLITSKO-DALMATINSKA
630
555
508
330
834
809
59.46%
57.68%
ISTARSKA
342
281
148
328
311
47.28%
44.83%
DUBROVAČKO-NERETVANSKA
204
100
206
197
59.17%
56.59%
MEĐIMURSKA 75 71
193
84.52%
GRAD ZAGREB
906
829
730
316
709
695
38.12%
37.37%
CROATIA
4914
4406
3976
2400
5888
5726
54.47%
52.97%

10. 8. RESPONSE RATE – cont. Refusal was reported in 35% of households
in Primorsko-goranska county 70% of households refused to participate in the survey, most often due to lack of time or lack of interest
Immobility rate – 30% of respondents did not travel to distances up to 300 km
Rescheduling the date of interviewing for one or more weeks (depending on the availability of the head of household) instead within three days has also influenced the increase of the response rate

11. 9. RESULTS Guidelines (version July 2016) does not contain
calculation formulas for indicators
it was not entirely clear which number of respondents should be used for calculation (all respondents/trip-makers)
Eurostat was consulted and formulas and additional explanation were available to us

12. 10. RESULTS – cont Calculation: The total number of trips is divided by the reference population. Data for working and non-working days are separately calculated, while data for "all days" are calculated according to the formula (5 * number of travel working days) + (2 * number of non-working days) / 7.
Table 2. Passenger mobility indicators by type of mobility (urban, non-urban, total) and type of day (working/non-working day)
Passenger mobility indicators by type of mobility: urban, non-urban
Working day
Non-working day[1]
All days
(non-urban = total – urban) and days of the week: working day, non-working day
Urban mobility
Total mobility
<100 km
<300 km
2. Number of trips per person/per day
a) Total
0,45
0,95
0,17
0,36
0,37
0,78
3. Travel distance per person/day (km)
4,41
11,59
1,45
4,90
3,56
9,68
3a. Average distance per trip (km)
9,70
12,18
8,63
13,48
9,39
12,55
4. Travel time per person/day (minutes)
19,94
38,25
6,50
14,62
16,10
31,50
5. Passenger kilometers (pkm) for all reference population/year 
a) Total (mln)
5.570,72
14.653,27
1.831,09
6.189,90
7.401,82
20.843,17
6. Average vehicle occupancy 
for passenger car
1,48
1,78
1,75
1,56
1,55
for taxi
3,52
2,00
3,00
[1] Non-working day = Saturday, Sunday and (All Saints' Day)

13. Medium distance mobility Long distance mobility
11. RESULTS – cont.
Table 3. Passenger mobility indicators by distance classes (medium and long distance: km, 1000 km and above)
Passenger mobility indicators by distance classes
Medium distance mobility
Long distance mobility
One-day
Overnight
2. Number of trips per person/per year
a) Total
0,21
0,00
3. Travel distance per person/year (km)
a) Total
86,37
5,40
3a. Average distance per journey (km)
409,42
2.000,00
4. Travel time per person/year (min)
61,81
0,68
5. Passenger kilometres (pkm) for all reference population/year
a) Total (mln)
299,07
18,70
6. Average vehicle occupancy
for passenger car and taxi
1,98 -

14. 2. Number of trips per person/per day
12. RESULTS – cont Calculation: The total number of trips is divided by the reference population. Data for "all days" are calculated according to the formula (number of travel working days + number of travel non-working days).
2. Number of trips per person/per day
Working day
Non-working day
All days
Urban mobility <100 km
Total mobility <300 km
a)      Total
0,45
0,95
0,17
0,36
0,62
1,32
b)      By main travel mode
by passenger car (total)
0,25
0,57
0,09
0,22
0,34
0,79
as driver
0,20
0,46
0,06
0,15
0,26
0,61
as passenger
0,05
0,12
0,03
0,07
0,08
0,18
by taxi (as passenger)
0,00
by van/lorry/tractor/camper
0,01
by motorcycle and moped
by bus and coach
0,04
by train
aviation
waterways
cycling
0,02
walking
0,21
0,10
0,31
tram
other

15. 2. Number of trips per person/per day
13. RESULTS – cont.
2. Number of trips per person/per day
Working day
Non-working day
All days
Urban mobility <100 km
Total mobility <300 km
a)      Total
0,6714
1,4061
0,2476
0,5362
0,5503
1,1576
b)      By main travel mode
by passenger car (total)
0,3696
0,8476
0,1325
0,3220
0,3018
0,6974
as driver
0,2947
0,6720
0,0891
0,2253
0,2360
0,5444
as passenger
0,0749
0,1756
0,0434
0,0967
0,0659
0,1530
by taxi (as passenger)
0,0047
0,0025
0,0041
by van/lorry/tractor/camper
0,0019
0,0163
0,0000
0,0056
0,0013
0,0132
by motorcycle and moped
0,0027
0,0106
0,0039
0,0023
0,0087
by bus and coach
0,0636
0,0996
0,0102
0,0141
0,0484
0,0752
by train
0,0042
0,0094
0,0001
0,0009
0,0031
0,0070
aviation
waterways
0,0005
0,0004
cycling
0,0225
0,0832
0,0100
0,0311
0,0190
0,0683
walking
0,1753
0,3062
0,0855
0,1502
0,1497
0,2616
tram
0,0266
0,0055
0,0206
other
0,0002
0,0015
0,0003
0,0012
Calculation: The total number of trips is divided by the trip-makers. Data for working and non-working days are separately calculated, while data for "all days" are calculated according to the formula (5 * number of travel working days) + (2 * number of non-working days) / 7.

16. 14. AN OVERVIEW OF RESULTS
Number of trips per person per day - less than 1 if the calculation is based on reference population and 1,2 if calculation is based on trip makers
Possible reasons for low number of trips per person per day:
- 30% of respondents did not travel to distances up to 300 km
- a lot of return trips were not recorded
- some trips were recorded as stages

17. 15. PROMOTION OF THE SURVEY 1st phase – means to increase the response rate
To get the public all relevant information about the survey activities
Two activities – to introduce the survey to the potential respondents and to communicate with the respondents before, during and after data collection process by using our social networks
Leaflet was attached to the introduction letter for surveyed households

18. 16. PROMOTION OF THE SURVEY – cont
16. PROMOTION OF THE SURVEY – cont. 2nd phase - dissemination of the key indicators on CBS social networks
The leaflet to respondents contained short questions. Data have been connected to these questions and made it possible to tell the short story about the survey and part of the data
The most common trip purposes were work (35%), leisure (22%) and personal business (19%)
51% of households owned at least one car and 24% two and more cars
Most people travelled by a car (60%) and walk (23%).

19. 17. LESSONS LEARNT
The respondents praised the subject of the survey and the interviewers emphasized that was really refreshing, new and different survey
Most difficult regarding CAPI method is predefined interviews on the exact dates for exact address and the rule of three returns on the same address
Better explanation about the difference between stages and trips
Need to pay better attention on reporting return trips
Need to ask respondents for two days (weekday and weekend trips)
Need for more examples and clarification about the trips, stages and loops in the Guidelines
Need for calculation formulas for passenger indicators in the Guidelines

20. 18. STEPS FORWARD (PLANS)
It is planned to carry out the survey and collect data for (mixing CAPI and CAWI methods)
Investigate the possibilities of including the Passenger Mobility indicators for medium and long distance one day and overnight journeys into the survey on Tourist Activity of Population of Republic of Croatia
Defining data processing software and output tables, analysing data and comparing with 2017 results, dissemination of the results
Promotion activities (it is planned to promote the survey through CBS website, social networks, leaflets, media)

21. Thank you for your attention!
Upišite naziv prezentacije
Page 21 21