BBC News - Interactive: Tracking fatal accidents over 24 hours

Three times as many males die as females. This is partly a question of greater exposure but other research shows that, even per mile travelled, males are twice as likely to be involved in crashes as females.

Commentary: Professor Murray Mackay, Professor Emeritus of transport safety, at Birmingham University

Hour of the day	Male	Female
1	86	20
2	59	20
3	52	10
4	56	8
5	38	9
6	35	6
7	59	14
8	75	19
9	51	32
10	53	26
11	61	31
12	66	35
13	76	36
14	70	41
15	87	43
16	114	41
17	98	39
18	121	52
19	103	17
20	103	29
21	99	26
22	83	26
23	100	24
24	80	17

Fatalaties by age

New drivers aged between 17 and 25 stand out. Passing a driving test does not provide the necessary experience and judgments needed for today's busy roads. The hourly distribution has high numbers between 10pm and 2am, implying partying, drinking and lower levels of seat belt use.

Those aged 75 years and older comprise a surprisingly large segment - likely reflecting the greater vulnerability of the human frame as we age. The hourly distribution of the 75+ group is almost the opposite of the 17? to 25-year-old group - almost all in daylight hours.

Commentary: Professor Murray Mackay, Professor Emeritus of transport safety, at Birmingham University

Hour of the day	Under 17years old	17-25 years old	26-35 years old	36-45 years old	46-55 years old	56-65 years old	66-75 years old	75 and older
1	3	56	17	11	7	10	2	0
2	1	42	20	7	4	4	1	0
3	4	29	18	7	3	1	0	0
4	1	26	19	6	7	4	1	0
5	2	27	9	3	4	2	0	0
6	4	10	9	5	10	3	0	0
7	2	13	20	15	10	9	3	1
8	3	23	14	16	16	9	8	5
9	12	18	15	14	6	3	7	9
10	3	10	16	10	9	10	4	17
11	3	9	4	19	9	9	8	31
12	4	16	11	13	16	8	9	24
13	8	20	17	14	13	10	14	16
14	6	17	10	19	10	9	16	24
15	2	22	19	24	13	16	8	26
16	15	19	16	20	17	12	22	34
17	14	21	15	20	18	7	13	28
18	12	23	21	39	19	13	18	28
19	11	30	15	21	11	8	9	15
20	15	37	21	18	14	8	8	11
21	11	40	25	17	9	11	6	6
22	12	38	18	9	11	11	5	5
23	4	49	20	17	18	4	6	6
24	4	48	17	13	10	1	1	3

Fatalaties by weather

With 12% of deaths in the rain and 83% of deaths in fine weather that suggests that weather is not as big a factor as many think. Rain combined with darkness does show higher numbers of deaths.

Commentary: Professor Murray Mackay, Professor Emeritus of transport safety, at Birmingham University

Hour of the day	Fine	Rain	Snow	Fog	Other
1	77	18	0	1	4
2	58	6	0	1	5
3	45	4	0	3	1
4	52	8	0	3	4
5	32	4	0	0	2
6	30	6	1	2	1
7	55	7	1	3	2
8	84	6	0	2	3
9	64	10	1	0	6
10	65	11	0	1	1
11	78	8	0	1	3
12	87	8	2	0	2
13	89	16	0	0	4
14	90	7	1	2	6
15	117	8	0	0	1
16	123	17	0	0	7
17	114	20	0	0	1
18	143	28	0	1	2
19	93	19	0	1	1
20	105	17	0	1	6
21	97	18	0	1	1
22	78	10	1	1	5
23	99	20	0	0	2
24	72	13	0	0	4

Fatalaties by vehicle

One half are car occupants, mainly distributed between 3 pm and 1am. Contrast that with motorcycle riders where most fatalities are in daylight hours or the early evening. There are three times as many car occupant deaths as motorcycle riders but there are 20 times more cars than motorcycles. Riding a motorcycle is one of the most risky activities in modern life.

Pedestrian deaths are only 14% more than motorcyclist deaths. So, think of the differences in exposure. A surprising number of pedestrians are killed between 11 pm and 7 am. How many people are walking around in the middle of the night? And how many are sober?

Commentary: Professor Murray Mackay, Professor Emeritus of transport safety, at Birmingham University

Hour of the day	Bicycle	Motorbike	Car	Bus	Goods	Other	Pedestrian
1	5	4	85	2	2	0	26
2	0	7	60	0	2	0	16
3	0	5	44	1	4	0	12
4	1	4	45	0	10	1	14
5	0	3	29	0	6	0	8
6	0	5	25	0	5	2	7
7	5	11	43	1	7	0	7
8	9	19	52	4	8	1	19
9	5	25	40	1	9	1	16
10	8	12	40	3	12	1	19
11	5	23	49	4	5	1	27
12	10	19	48	4	14	4	26
13	5	26	53	5	12	4	25
14	2	34	54	4	6	5	25
15	8	41	59	2	11	1	18
16	5	42	89	1	7	2	37
17	9	33	79	3	6	4	35
18	9	52	84	5	7	7	44
19	9	25	68	2	3	3	33
20	4	28	80	6	6	3	39
21	3	27	77	2	7	2	32
22	5	16	68	1	5	1	31
23	4	19	86	0	4	1	21
24	2	7	72	1	3	2	20

Fatalaties by day of the week

The hourly distribution for all groups shows the afternoon and evening commute as high frequency times, reflecting the high volumes of traffic.

Friday, Saturday and Sunday cover 50% of all deaths.

Saturday and Sunday show evening peaks related to the periods following likely pub drinking and parties. On Sunday there are peaks following likely lunchtime drinking.

Commentary: Professor Murray Mackay, Professor Emeritus of transport safety, at Birmingham University

Hour of the day	Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
1	34	5	6	10	10	8	27
2	17	6	6	6	5	10	20
3	13	5	4	4	2	5	20
4	27	5	4	5	4	6	16
5	10	2	2	2	3	6	13
6	9	6	6	0	3	8	8
7	5	6	14	14	7	13	9
8	10	16	23	16	8	12	10
9	5	18	16	11	12	12	7
10	11	6	10	21	10	11	9
11	14	9	9	13	20	12	13
12	13	14	10	10	14	21	17
13	18	8	13	18	21	14	17
14	20	11	7	20	10	21	17
15	25	13	20	18	15	11	24
16	23	17	10	25	23	27	22
17	17	12	18	27	17	31	13
18	27	20	23	21	20	39	24
19	16	16	22	16	11	22	11
20	18	18	13	14	23	20	23
21	15	15	15	12	16	21	23
22	9	20	9	7	17	17	16
23	20	17	12	18	15	19	20
24	8	9	13	9	10	19	21

Fatalaties by road type

The low number of fatalities on motorways stands out. 30% on unclassified roads relates largely to urban streets which have not been classified.

The evening commuting hours stand out particularly on unclassified, C and B roads.

Commentary: Professor Murray Mackay, Professor Emeritus of transport safety, at Birmingham University

Hour of the day	Motorway	A road	B road	C road	Unclassified
1	5	47	23	10	41
2	6	39	11	10	29
3	7	37	3	7	14
4	6	46	14	5	18
5	5	19	7	3	14
6	8	28	2	4	8
7	5	39	12	12	27
8	9	61	11	15	33
9	5	44	15	19	36
10	3	51	12	9	32
11	4	48	14	9	49
12	0	65	15	10	48
13	8	62	17	12	52
14	7	66	19	11	42
15	10	84	22	12	43
16	4	83	29	19	76
17	6	72	27	15	66
18	8	105	38	20	74
19	5	66	16	19	44
20	12	69	23	15	51
21	8	79	16	6	41
22	8	48	16	7	47
23	5	72	22	13	49
24	4	47	16	13	35