N incidents	% any delay	% delay coded due to ‘traffic calming measures’	% delay coded due to ‘traffic, roadworks etc’	% delay coded due to a different specified issue	% delay coded ‘not held up’, i.e. no specific reason
LTN impact [Model A]	Not in or next LTN	21,104	1	1	1	1	1
	LTN boundary	855	0.97 (0.80, 1.16)	0.59 (0.30, 1.14)	1.17 (0.78, 1.76)	1.20 (0.89, 1.62)	0.73 (0.53, 1.00)*
	Inside LTN	1384	1.04 (0.89, 1.22)	1.89 (1.32, 2.70)***	1.26 (0.97, 1.64)	0.88 (0.66, 1.19)	0.82 (0.66, 1.01)
LTN impact, by time since implementation [Model B]	Not in or next LTN	21,104	1	1	1	1	1
	LTN boundary, <1 year	267	0.96 (0.76, 1.22)	0.44 (0.10, 1.83)	1.58 (0.97, 2.58)	0.96 (0.56, 1.62)	0.66 (0.38, 1.14)
	LTN boundary, ≥1 year	588	0.96 (0.77, 1.21)	0.66 (0.35, 1.23)	0.94 (0.51, 1.74)	1.34 (0.91, 1.97)	0.76 (0.54, 1.09)
	Inside LTN, <1 year	390	1.10 (0.90, 1.35)	2.24 (1.41, 3.56)**	1.34 (0.95, 1.89)	0.93 (0.57, 1.51)	0.78 (0.54, 1.14)
	Inside LTN, ≥1 year	994	1.02 (0.85, 1.22)	1.73 (1.15, 2.60)**	1.21 (0.86, 1.71)	0.87 (0.57, 1.32)	0.83 (0.65, 1.06)