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Costs of Congestion: Literature Based Review of Methodologies and Analytical Approaches

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ANNEXE 1 SCOTTISH HOUSEHOLD SURVEY ANALYSIS (2003-04)

Table 0.1 - Journey purpose proportions

Weighted Frequency

Percent

Travel during work

1,756

6.6%

Commuting

7,305

27.6%

Other non-work

17,393

65.7%

Total

26,454

100%

Table 0.2 - Proportion of trips delayed due to traffic congestion

Weighted Frequency

Percent

Yes

3,037

11.5%

No

23,416

88.5%

Total

26,454

100%

Table 0.3 - Proportion of trips delayed by congestion by journey purpose

Whether part of car/van trip delayed due to traffic congestion

Yes

No

Travel during work

17.0%

83.0%

Commuting

18.0%

82.0%

Other non-work

8.2%

91.8%

Total

11.5%

88.5%

Table 0.4 - Proportion of trips delayed by congestion by RTP (all trips)

ALL TRIPS

Regional Transport Partnership of trip destination

Whether part of car/van trip delayed due to traffic congestion

Yes

No

West of Scotland

13.5%

86.5%

North East Scotland

12.9%

87.1%

South East Scotland

12.4%

87.6%

Central and Tay

8.3%

91.7%

South West Scotland

7.1%

92.9%

Highlands and Islands of Scotland

5.6%

94.4%

Shetland

1.8%

98.2%

Total

11.5%

88.5%

Table 0.5 - Proportion of trips delayed by congestion by RTP (peak hour trips only)

PEAK HOUR TRIPS ONLY

Regional Transport Partnership of trip destination

Whether part of car/van trip delayed due to traffic congestion

Yes

No

North East Scotland

31.7%

68.3%

West of Scotland

28.1%

71.9%

South East Scotland

27.2%

72.8%

Central and Tay

19.4%

80.6%

Highlands and Islands of Scotland

13.2%

86.8%

South West Scotland

9.4%

90.6%

Shetland

2.9%

97.1%

Total

25.3%

74.7%

Notes to table
A peak hour trips is defined as one that either begins or ends during the morning peak (8am to 9am) or the evening peak (5pm to 6pm).

Table 0.6 - Proportion of trips delayed by congestion by RTP (off-peak trips only)

OFF-PEAK TRIPS ONLY

Regional Transport Partnership of trip destination

Whether part of car/van trip delayed due to traffic congestion

Yes

No

West of Scotland

9.9%

90.1%

South East Scotland

8.7%

91.3%

North East Scotland

8.4%

91.6%

South West Scotland

6.7%

93.3%

Central and Tay

5.5%

94.5%

Highlands and Islands of Scotland

4.0%

96.0%

Shetland

1.5%

98.5%

8.2%

91.8%

Notes to table
A peak hour trips is defined as one that either begins or ends during the morning peak (8am to 9am) or the evening peak (5pm to 6pm).

Table 0.7 - Proportion of trips delayed by congestion by Local Authority (all trips)

ALL TRIPS

Council area of destination

Whether part of car/van trip delayed due to traffic congestion

Yes

No

Aberdeen City

19.4%

80.6%

Glasgow City

17.2%

82.8%

Edinburgh, City of

17.1%

82.9%

South Ayrshire

15.7%

84.3%

Inverclyde

14.8%

85.2%

Falkirk

14.6%

85.4%

Midlothian

13.6%

86.4%

West Dunbartonshire

13.3%

86.7%

East Dunbartonshire

12.9%

87.1%

North Lanarkshire

12.3%

87.7%

East Renfrewshire

11.9%

88.1%

South Lanarkshire

11.7%

88.3%

Dundee City

11.6%

88.4%

West Lothian

11.6%

88.4%

East Lothian

11.5%

88.5%

Renfrewshire

11.5%

88.5%

North Ayrshire

10.8%

89.2%

East Ayrshire

10.1%

89.9%

Stirling

8.5%

91.5%

Clackmannanshire

8.4%

91.6%

Moray

8.1%

91.9%

Fife

7.9%

92.1%

Dumfries & Galloway

7.1%

92.9%

Perth & Kinross

6.9%

93.1%

Angus

6.6%

93.4%

Scottish Borders

6.4%

93.6%

Highland

6.0%

94.0%

Aberdeenshire

5.6%

94.4%

Argyll & Bute

4.1%

95.9%

Orkney Islands

2.7%

97.3%

Eilean Siar

2.6%

97.4%

Shetland Islands

1.8%

98.2%

Total

11.5%

88.5%

Table 0.8 - Proportion of trips delayed by congestion by Local Authority (peak hour trips only)

PEAK HOUR TRIPS ONLY

Council area of destination

Whether part of car/van trip delayed due to traffic congestion

Yes

No

Aberdeen City

42.2%

57.8%

Edinburgh, City of

38.3%

61.7%

East Renfrewshire

33.3%

66.7%

Glasgow City

33.2%

66.8%

Midlothian

32.7%

67.3%

Falkirk

31.1%

68.9%

Renfrewshire

30.9%

69.1%

North Lanarkshire

29.1%

70.9%

East Lothian

28.4%

71.6%

South Lanarkshire

28.0%

72.0%

South Ayrshire

27.3%

72.7%

Dundee City

27.1%

72.9%

Inverclyde

25.0%

75.0%

East Dunbartonshire

24.8%

75.2%

Clackmannanshire

24.4%

75.6%

West Lothian

23.1%

76.9%

East Ayrshire

20.0%

80.0%

West Dunbartonshire

19.4%

80.6%

Fife

17.8%

82.2%

Angus

17.2%

82.8%

Aberdeenshire

16.9%

83.1%

Moray

16.7%

83.3%

Perth & Kinross

16.7%

83.3%

Stirling

16.4%

83.6%

Highland

15.4%

84.6%

North Ayrshire

15.3%

84.7%

Scottish Borders

12.5%

87.5%

Eilean Siar

10.7%

89.3%

Dumfries & Galloway

9.4%

90.6%

Argyll & Bute

8.3%

91.7%

Shetland Islands

2.9%

97.1%

Orkney Islands

0.0%

100.0%

Total

25.4%

74.6%

Table 0.9 - Average congestion delay

All trips

Only trips experiencing delay

Delay (mins)

1.3

11.0

Table 0.10 - Reported congestion related delay per trip by RTP

Regional Transport Partnership of trip destination

Reported congestion related delay (mins)

Averaged over all trips

Averaged over only those trips experiencing delay

West of Scotland

1.37

10.6

North East Scotland

1.36

11.0

South East Scotland

1.25

10.3

Central and Tay

0.70

8.6

South West Scotland

0.53

7.7

Highlands and Islands of Scotland

0.45

8.5

Shetland

0.08

5.1

Scotland

1.1

10.3

Notes to table
Excludes trips where exclusion of reported delay from reported journey time would result in negative freeflow journey time or a freeflow journey time that would require an average speed of greater than 130 kph (80 mph)

Table 0.11 - Reported congestion related delay per trip by LA

Local Authority of trip destination

Reported congestion related delay (mins)

Averaged over all trips

Averaged over only those trips experiencing delay

Glasgow City

2.0

12.1

Aberdeen City

2.0

10.6

Edinburgh, City of

1.8

10.7

Midlothian

1.4

10.4

South Ayrshire

1.4

8.6

North Lanarkshire

1.3

11.6

Renfrewshire

1.3

11.2

Falkirk

1.3

8.7

East Dunbartonshire

1.2

10.2

West Lothian

1.2

10.8

East Renfrewshire

1.2

10.7

Inverclyde

1.2

8.5

South Lanarkshire

1.1

10.2

East Lothian

1.1

9.6

West Dunbartonshire

1.1

8.6

Clackmannanshire

0.9

11.6

Stirling

0.9

10.5

Dundee City

0.9

7.5

North Ayrshire

0.8

7.7

Fife

0.8

10.2

East Ayrshire

0.7

7.5

Scottish Borders

0.7

11.2

Aberdeenshire

0.7

12.5

Moray

0.6

7.7

Angus

0.6

8.3

Perth & Kinross

0.5

8.2

Dumfries & Galloway

0.5

7.7

Highland

0.5

8.1

Argyll & Bute

0.4

12.2

Eilean Siar

0.2

7.4

Orkney Islands

0.2

7.5

Shetland Islands

0.1

5.1

Scotland

1.1

10.3

Notes to table
Excludes trips where exclusion of reported delay from reported journey time would result in negative freeflow journey time or a freeflow journey time that would require an average speed of greater than 130 kph (80 mph)