SCT08183658301-86

Table TD10a: [Congestion - reason] Reason for congestion for car / van stages, 2012-2017 ¹

	2012	2013	2014	2015	2016	2017
Volume of traffic	72.8	80.0	81.9	76.2	79.0	80.9
Road Maintenance	25.8	17.9	18.9	27.7	29.3	29.8
Road accident	1.1	1.6	1.7	1.5	2.0	2.1
Broken down car	0.7	**	0.5	0.7	**	**
Traffic lights/signals not working	3.1	2.6	2.0	2.1	1.4	1.6
Lane blocked by parked cars	1.3	**	**	**	**	0.5
Bad weather	1.4	1.6	1.5	1.0	0.5	0.8
Other	2.8	3.2	0.9	1.1	1.6	0.6
Don't know	0.4	**	**	**	0.7	0.5
Sample size (=100%)	810.0	780.0	930.0	1020.0	930.0	1070.0

¹ Respondents can provide more than one reason so percentages will not add up to 100%

** Less than 1% and supressed as based on fewer than 5 responses