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SHORT OVERVIEW OF NATIONAL TRAVEL SURVEYS. 1. Auteur ou Service. M.O. Gascon, CERTU, October 2006. COST meeting, Prague. 2 décembre 2002. TYPE OF SURVEY (EU25, EU candidates, EFTA, USA, South Corea). RESPONSE RATE. %. SLOVAK REPUBLIC. LATVIA. AVERAGE NUMBER OF TRIPS/PERSON/DAY. SWEDEN.

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Short overview of national travel surveys

SHORT OVERVIEW OF NATIONAL TRAVEL SURVEYS

1

Auteur ou Service

M.O. Gascon, CERTU, October 2006

COST meeting, Prague

2 décembre 2002


Type of survey eu25 eu candidates efta usa south corea
TYPE OF SURVEY(EU25, EU candidates, EFTA, USA, South Corea)


Response rate
RESPONSE RATE

%

SLOVAK REPUBLIC

LATVIA




Some differences and consequences in npts and local transport surveys

SOME DIFFERENCES AND CONSEQUENCES IN NPTS AND LOCAL TRANSPORT SURVEYS

6

Auteur ou Service

M.O. Gascon, CERTU, October 2006

COST meeting, Prague

2 décembre 2002


Differences on sampling procedures

Sample size (for global figures) TRANSPORT SURVEYS

Source : survey / census

Households or persons (cluster effect / two stages sampling)

DIFFERENCES ON SAMPLING PROCEDURES


Differences on sampling procedures1

Age: mini 6,10 (15) / no max,74/84 TRANSPORT SURVEYS

Mobility for a single (previous) day or a week

Long distance trips : 2 weeks, 1 month, 3 months

DIFFERENCES ON SAMPLING PROCEDURES


Differences on sampling procedures2

Working day ? All days ? TRANSPORT SURVEYS

Continuous ? Cross sectional ?

Face to face ? Telephone ? Postal ?

DIFFERENCES ON SAMPLING PROCEDURES


Differences in definitions

Long distance trip = >50 km (D), >200 km (B), >80 km (F) TRANSPORT SURVEYS

Walking trips : all, limit on distance (45 m, UK) on duration (5’, Italy)

DIFFERENCES IN DEFINITIONS

10


Differences in definitions1

Mode : several ? Main mode ? (longest part of the trip,hierarchy)

Trip purposes : not the same classification (3 to 13 !)

DIFFERENCES IN DEFINITIONS


Differences in definitions2

Additional information on certain kinds of trips : tourism, taxi drivers, rounds (postmen, doctors)

Vehicle-kilometers / passenger-kilometers

DIFFERENCES IN DEFINITIONS

12


Differences in indicators

Publications do not allow full comparison taxi drivers, rounds (postmen, doctors)

Modes : car (driver/passenger), motorbike/bicycle, taxis, motorised/non motorised, public/private, rail, urban/interurban

DIFFERENCES IN INDICATORS


Differences in indicators1

Purposes : work/education, shopping/personal business, escort, leisure (sport/culture/visit to friends and relatives), home

Distance, travel time, age : different classifications

DIFFERENCES IN INDICATORS


French local travel surveys

ALMOST 100 SURVEYS ON 80 URBAN AREAS, 20 IN PROJECT BEFORE 2009

FACE TO FACE IN THE MORE DENSE ZONE

PHONE IN THE OUTSKIRTS

FRENCH LOCAL TRAVEL SURVEYS


Why not by phone in local transport survey

(more urbanised zone) 2009

Bias in the sample :

Land line phone equipement is decreasing : urban area of Grenoble 2002 : 86%

Students : only ½, they live in the more urbanised zone

WHY NOT BY PHONE IN LOCAL TRANSPORT SURVEY

16


Why not by phone in local transport survey1

(more urbanised zone) 2009

Daily mobility different(Grenoble)

no land line phone : 4,4 trips/pers/day,

with land line phone : 4,0

more by PT (+ 0,3), more on foot

(+ 0,3) and less by car (- 0,2)

WHY NOT BY PHONE IN LOCAL TRANSPORT SURVEY

17


Why by phone in the outskirts

No land line phone : 7% 2009

Daily mobility less different : 3,6 , with land line phone : 3,7

Less trips out of the municipality of home :

no land line phone : 1/2,

with land line phone : 2/3

WHY BY PHONE IN THE OUTSKIRTS ?

18


Why by phone in the outskirts1

Slight difference on global daily mobility figure if surveying only equipped households :

3,77 trips/pers/day instead of 3,72

WHY BY PHONE IN THE OUTSKIRTS ?

19