Safety Measurement System

Carrier Measure Over Time

Trends
History

This graph displays a carrier’s measure based on 24 months of on-road performance. Zero indicates the best performance. To see how the measure is calculated click here . To see how the measure relates to percentile click here. Expand for more information.

Carrier violations or crashes are weighted by time and severity to produce a measure for that carrier in each BASIC. The measure only considers individual performance based on 24 months of data, with a measure of 0 indicating best performance. The graph below gives a summary of the carrier’s individual performance measure in a specific BASIC over a selected period of time. Select from the drop-down to view this actual performance data along with how this data would appear applying the most recent SMS methodology.

Measure

Nov 19
Dec 17
Feb 10
Feb 25
Mar 25
Apr 22
May 20
Jun 24
Jul 22
Aug 26
Sep 23
Oct 28
Nov 18
Dec 16
Jan 27
Feb 24
Mar 23
Apr 27
May 25
Jun 22
Jul 27
Aug 24
Sep 28
Oct 26
Nov 16
Dec 14
Jan 25
Feb 22
Mar 22
Apr 26
May 24
Jun 21
Jul 26
Aug 23
Sep 27
Oct 25
Nov 29
Dec 27
Jan 24
Feb 21
Mar 28
Apr 25
May 30
Jun 20
Jul 25
Aug 22
Sep 26
Oct 24
Nov 21
Dec 19
Jan 23
Feb 20
Mar 27
Apr 24
May 22
Jun 19
Jul 24
Aug 28
Sep 25
Oct 23
Nov 27
Dec 28
Jan 29
Feb 26
Mar 25
Apr 29
May 27
Jun 24
Jul 22
Aug 26
Sep 23
Oct 28
Nov 25
Dec 30
Jan 27
Feb 24
Mar 31
Apr 28
May 26
Jun 30
Jul 28
Aug 25
Sep 29
Oct 27
Nov 17
Dec 29
Jan 26
Feb 23
Mar 30
Apr 27
May 25
Jun 29
Jul 27
Aug 31
Sep 28
Oct 26
Nov 30
Dec 28
Jan 25
Feb 22
Mar 29
Apr 26
May 31
Jun 28
Jul 26
Aug 30
Sep 27
Oct 25
Nov 29
Dec 27
Jan 31
Feb 28
Mar 27
Apr 24
May 29
Jun 26
Jul 31
Aug 28
Sep 25
Oct 30
Nov 27
Dec 18
Jan 29
Feb 26
Mar 26
Apr 30
May 28
Jun 25
Jul 30
Aug 27
Sep 24
Oct 29
Nov 26
Dec 31
Jan 28
Feb 25
Mar 25
Apr 29
May 27
Jun 24
Jul 29
Aug 26
Sep 30
Oct 28
Nov 25
Dec 30
Jan 27
Feb 24
Mar 31
Apr 28
May 26
Jun 30
Jul 28
Aug 25
Sep 29
Oct 27
Nov 24
Dec 29
Jan 26
Feb 23
Mar 29
Apr 26
May 31
Jun 28
Jul 26
Aug 30

2010
2010
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2012
2012
2012
2012
2012
2012
2012
2012
2012
2012
2012
2012
2013
2013
2013
2013
2013
2013
2013
2013
2013
2013
2013
2013
2014
2014
2014
2014
2014
2014
2014
2014
2014
2014
2014
2014
2015
2015
2015
2015
2015
2015
2015
2015
2015
2015
2015
2015
2016
2016
2016
2016
2016
2016
2016
2016
2016
2016
2016
2016
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2018
2018
2018
2018
2018
2018
2018
2018
2018
2018
2018
2018
2019
2019
2019
2019
2019
2019
2019
2019
2019
2019
2019
2019
2020
2020
2020
2020
2020
2020
2020
2020
2020
2020
2020
2020
2021
2021
2021
2021
2021
2021
2021
2021
2021
2021
2021
2021
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2023
2023
2023
2023
2023
2023
2023
2023
2023
2023
2023
2023
2024
2024
2024
2024
2024
2024
2024
2024

	Nov 19 2010	Dec 17 2010	Feb 10 2011	Feb 25 2011	Mar 25 2011	Apr 22 2011	May 20 2011	Jun 24 2011	Jul 22 2011	Aug 26 2011	Sep 23 2011	Oct 28 2011	Nov 18 2011	Dec 16 2011	Jan 27 2012	Feb 24 2012	Mar 23 2012	Apr 27 2012	May 25 2012	Jun 22 2012	Jul 27 2012	Aug 24 2012	Sep 28 2012	Oct 26 2012	Nov 16 2012	Dec 14 2012	Jan 25 2013	Feb 22 2013	Mar 22 2013	Apr 26 2013	May 24 2013	Jun 21 2013	Jul 26 2013	Aug 23 2013	Sep 27 2013	Oct 25 2013	Nov 29 2013	Dec 27 2013	Jan 24 2014	Feb 21 2014	Mar 28 2014	Apr 25 2014	May 30 2014	Jun 20 2014	Jul 25 2014	Aug 22 2014	Sep 26 2014	Oct 24 2014	Nov 21 2014	Dec 19 2014	Jan 23 2015	Feb 20 2015	Mar 27 2015	Apr 24 2015	May 22 2015	Jun 19 2015	Jul 24 2015	Aug 28 2015	Sep 25 2015	Oct 23 2015	Nov 27 2015	Dec 28 2015	Jan 29 2016	Feb 26 2016	Mar 25 2016	Apr 29 2016	May 27 2016	Jun 24 2016	Jul 22 2016	Aug 26 2016	Sep 23 2016	Oct 28 2016	Nov 25 2016	Dec 30 2016	Jan 27 2017	Feb 24 2017	Mar 31 2017	Apr 28 2017	May 26 2017	Jun 30 2017	Jul 28 2017	Aug 25 2017	Sep 29 2017	Oct 27 2017	Nov 17 2017	Dec 29 2017	Jan 26 2018	Feb 23 2018	Mar 30 2018	Apr 27 2018	May 25 2018	Jun 29 2018	Jul 27 2018	Aug 31 2018	Sep 28 2018	Oct 26 2018	Nov 30 2018	Dec 28 2018	Jan 25 2019	Feb 22 2019	Mar 29 2019	Apr 26 2019	May 31 2019	Jun 28 2019	Jul 26 2019	Aug 30 2019	Sep 27 2019	Oct 25 2019	Nov 29 2019	Dec 27 2019	Jan 31 2020	Feb 28 2020	Mar 27 2020	Apr 24 2020	May 29 2020	Jun 26 2020	Jul 31 2020	Aug 28 2020	Sep 25 2020	Oct 30 2020	Nov 27 2020	Dec 18 2020	Jan 29 2021	Feb 26 2021	Mar 26 2021	Apr 30 2021	May 28 2021	Jun 25 2021	Jul 30 2021	Aug 27 2021	Sep 24 2021	Oct 29 2021	Nov 26 2021	Dec 31 2021	Jan 28 2022	Feb 25 2022	Mar 25 2022	Apr 29 2022	May 27 2022	Jun 24 2022	Jul 29 2022	Aug 26 2022	Sep 30 2022	Oct 28 2022	Nov 25 2022	Dec 30 2022	Jan 27 2023	Feb 24 2023	Mar 31 2023	Apr 28 2023	May 26 2023	Jun 30 2023	Jul 28 2023	Aug 25 2023	Sep 29 2023	Oct 27 2023	Nov 24 2023	Dec 29 2023	Jan 26 2024	Feb 23 2024	Mar 29 2024	Apr 26 2024	May 31 2024	Jun 28 2024	Jul 26 2024	Aug 30 2024
Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
BASIC Trends Version	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.2	3.0.2	3.0.2	3.0.2	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.4	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.6	3.0.6	3.0.6	3.0.6	3.0.6	3.0.7	3.0.7	3.0.7	3.0.8	3.0.8	3.0.8	3.0.8	3.0.8	3.0.8	3.0.8	3.0.8	3.0.8	3.0.9	3.0.9	3.0.9	3.0.9	3.0.9	3.0.9	3.0.9	3.0.9	3.0.9	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10
Investigation Results
On-Road Performance Detail
Measure	3.22	3.25	3.28	3.28	3.32	3.34	3.35	3.37	3.40	3.40	3.38	3.39	3.39	3.35	3.32	3.31	3.28	3.26	3.26	3.21	3.17	3.14	3.12	3.11	3.10	3.10	3.10	3.11	3.11	3.14	3.12	3.04	3.02	3.01	2.97	2.93	2.91	2.88	2.89	2.87	2.87	2.86	2.89	2.88	2.85	2.86	2.85	2.83	2.80	2.79	2.77	2.74	2.72	2.71	2.70	2.75	2.73	2.70	2.70	2.68	2.67	2.65	2.61	2.60	2.58	2.56	2.52	2.53	2.54	2.52	2.54	2.55	2.55	2.55	2.56	2.58	2.61	2.63	2.63	2.64	2.66	2.68	2.68	2.69	2.70	2.70	2.69	2.67	2.68	2.66	2.69	2.68	2.66	2.66	2.65	2.65	2.63	2.62	2.61	2.59	2.59	2.55	2.55	2.54	2.53	2.52	2.51	2.50	2.45	2.44	2.45	2.44	2.42	2.41	2.41	2.42	2.42	2.43	2.47	2.52	2.56	2.59	2.62	2.64	2.67	2.71	2.70	2.69	2.70	2.71	2.71	2.70	2.71	2.70	2.69	2.70	2.72	2.70	2.73	2.74	2.74	2.75	2.74	2.77	2.78	2.80	2.78	2.81	2.84	2.86	2.86	2.87	2.86	2.85	2.87	2.87	2.88	2.92	2.92	2.95	2.96	2.98	3.03	3.07	3.10	3.12
Safety Event Group	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections
Vehicle Inspections	21,355	21,131	20,805	20,734	20,559	20,368	20,203	19,946	19,689	19,479	19,457	19,123	18,920	18,779	18,633	18,581	18,434	18,216	18,104	17,971	17,852	17,742	17,451	17,318	17,200	17,077	16,931	16,829	16,814	16,901	16,997	17,099	17,126	17,081	17,021	17,109	17,102	17,076	17,037	17,065	17,231	17,430	17,574	17,628	17,722	17,913	18,027	18,228	18,345	18,469	18,585	18,779	18,877	19,041	19,082	19,080	19,176	19,661	20,021	20,473	20,883	21,241	21,591	21,418	21,841	21,854	22,085	22,211	22,296	22,564	22,497	22,720	22,749	23,129	23,356	23,583	23,804	24,055	24,271	24,486	24,726	24,523	24,485	24,542	24,493	24,296	24,464	24,782	24,670	24,820	24,793	24,457	24,235	23,729	23,531	23,120	22,616	22,210	21,981	21,568	21,196	20,759	20,251	19,833	19,434	19,030	18,637	18,114	17,678	17,419	16,930	16,611	16,252	15,582	14,830	14,517	14,343	14,244	14,091	13,877	13,691	13,555	13,173	12,888	12,598	12,342	12,174	11,867	11,617	11,413	11,204	11,056	10,993	10,967	10,860	10,729	10,697	11,029	11,287	11,370	11,423	11,568	11,613	11,725	11,793	11,985	12,142	12,292	12,385	12,553	12,782	12,956	13,061	13,207	13,303	13,281	13,173	13,148	13,081	13,086	13,110	13,013	12,978	12,997	12,978	12,947
with Vehicle Maint. Violations	9,720	9,647	9,537	9,512	9,462	9,430	9,366	9,265	9,165	9,036	8,997	8,846	8,765	8,665	8,575	8,555	8,462	8,336	8,285	8,184	8,097	8,018	7,885	7,825	7,737	7,650	7,574	7,486	7,456	7,458	7,445	7,390	7,341	7,303	7,233	7,242	7,204	7,150	7,133	7,102	7,169	7,246	7,307	7,287	7,289	7,380	7,426	7,488	7,504	7,522	7,547	7,580	7,580	7,617	7,629	7,689	7,714	7,863	7,988	8,134	8,313	8,436	8,470	8,379	8,487	8,450	8,457	8,500	8,529	8,552	8,518	8,596	8,592	8,723	8,790	8,882	8,972	9,081	9,153	9,213	9,326	9,267	9,281	9,361	9,348	9,326	9,401	9,502	9,477	9,537	9,584	9,466	9,364	9,215	9,127	8,963	8,746	8,569	8,480	8,301	8,107	7,874	7,661	7,466	7,276	7,083	6,897	6,639	6,404	6,279	6,085	5,938	5,779	5,520	5,197	5,068	4,983	4,944	4,901	4,844	4,799	4,762	4,640	4,549	4,458	4,393	4,323	4,209	4,140	4,082	4,022	4,002	4,005	4,000	3,959	3,931	3,944	4,044	4,145	4,177	4,193	4,231	4,219	4,256	4,282	4,353	4,395	4,457	4,491	4,559	4,657	4,722	4,740	4,776	4,819	4,799	4,769	4,780	4,740	4,760	4,785	4,785	4,831	4,847	4,860	4,872
without Vehicle Maint. Violations	11,635	11,484	11,268	11,222	11,097	10,938	10,837	10,681	10,524	10,443	10,460	10,277	10,155	10,114	10,058	10,026	9,972	9,880	9,819	9,787	9,755	9,724	9,566	9,493	9,463	9,427	9,357	9,343	9,358	9,443	9,552	9,709	9,785	9,778	9,788	9,867	9,898	9,926	9,904	9,963	10,062	10,184	10,267	10,341	10,433	10,533	10,601	10,740	10,841	10,947	11,038	11,199	11,297	11,424	11,453	11,391	11,462	11,798	12,033	12,339	12,570	12,805	13,121	13,039	13,354	13,404	13,628	13,711	13,767	14,012	13,979	14,124	14,157	14,406	14,566	14,701	14,832	14,974	15,118	15,273	15,400	15,256	15,204	15,181	15,145	14,970	15,063	15,280	15,193	15,283	15,209	14,991	14,871	14,514	14,404	14,157	13,870	13,641	13,501	13,267	13,089	12,885	12,590	12,367	12,158	11,947	11,740	11,475	11,274	11,140	10,845	10,673	10,473	10,062	9,633	9,449	9,360	9,300	9,190	9,033	8,892	8,793	8,533	8,339	8,140	7,949	7,851	7,658	7,477	7,331	7,182	7,054	6,988	6,967	6,901	6,798	6,753	6,985	7,142	7,193	7,230	7,337	7,394	7,469	7,511	7,632	7,747	7,835	7,894	7,994	8,125	8,234	8,321	8,431	8,484	8,482	8,404	8,368	8,341	8,326	8,325	8,228	8,147	8,150	8,118	8,075
Vehicle Maint. Violations	15,512	15,422	15,231	15,180	15,140	15,054	14,976	14,850	14,732	14,551	14,523	14,324	14,180	14,021	13,855	13,775	13,573	13,347	13,212	13,019	12,865	12,703	12,450	12,373	12,251	12,086	11,927	11,799	11,689	11,717	11,706	11,512	11,415	11,316	11,198	11,177	11,135	11,040	11,001	10,972	11,017	11,129	11,256	11,205	11,193	11,347	11,425	11,498	11,490	11,481	11,487	11,509	11,494	11,499	11,477	11,616	11,626	11,798	11,998	12,226	12,482	12,687	12,720	12,562	12,743	12,672	12,672	12,804	12,852	12,910	12,859	12,987	12,988	13,194	13,321	13,485	13,621	13,802	13,907	14,009	14,214	14,152	14,187	14,295	14,278	14,227	14,355	14,532	14,513	14,587	14,676	14,455	14,274	14,022	13,883	13,658	13,325	13,070	12,915	12,601	12,324	11,938	11,614	11,330	11,006	10,686	10,399	10,025	9,647	9,454	9,172	8,948	8,714	8,320	7,818	7,600	7,472	7,396	7,345	7,270	7,198	7,165	7,016	6,865	6,737	6,654	6,540	6,311	6,194	6,086	5,995	5,930	5,941	5,922	5,831	5,776	5,790	5,934	6,115	6,141	6,162	6,234	6,172	6,201	6,232	6,309	6,387	6,489	6,538	6,650	6,815	6,899	6,948	7,043	7,116	7,134	7,097	7,146	7,090	7,142	7,163	7,198	7,247	7,306	7,328	7,347
BASIC History Version	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.1	3.0.2	3.0.2	3.0.2	3.0.2	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.3	3.0.4	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.5	3.0.6	3.0.6	3.0.6	3.0.6	3.0.6	3.0.7	3.0.7	3.0.7	3.0.8	3.0.8	3.0.8	3.0.8	3.0.8	3.0.8	3.0.8	3.0.8	3.0.8	3.0.9	3.0.9	3.0.9	3.0.9	3.0.9	3.0.9	3.0.9	3.0.9	3.0.9	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10	3.0.10
Investigation Results
On-Road Performance Detail
Measure	3.20	3.23	3.26	3.26	3.30	3.31	3.33	3.34	3.37	3.37	3.35	3.36	3.35	3.30	3.26	3.27	3.25	3.23	3.22	3.18	3.13	3.11	3.08	3.08	3.10	3.10	3.10	3.11	3.11	3.14	3.12	3.04	3.02	3.01	2.97	2.93	2.91	2.88	2.89	2.87	2.87	2.86	2.89	2.88	2.85	2.86	2.85	2.83	2.80	2.79	2.77	2.74	2.72	2.71	2.70	2.75	2.73	2.70	2.70	2.68	2.67	2.65	2.61	2.60	2.58	2.56	2.52	2.53	2.54	2.52	2.54	2.55	2.55	2.55	2.56	2.58	2.61	2.63	2.63	2.64	2.66	2.68	2.68	2.69	2.70	2.70	2.69	2.67	2.68	2.66	2.69	2.68	2.66	2.66	2.65	2.65	2.63	2.62	2.61	2.59	2.59	2.55	2.55	2.54	2.53	2.52	2.51	2.50	2.45	2.44	2.45	2.44	2.42	2.41	2.41	2.42	2.42	2.43	2.47	2.52	2.56	2.59	2.62	2.64	2.67	2.71	2.70	2.69	2.70	2.71	2.71	2.70	2.71	2.70	2.69	2.70	2.72	2.70	2.73	2.74	2.74	2.75	2.74	2.77	2.78	2.80	2.78	2.81	2.84	2.86	2.86	2.87	2.86	2.85	2.87	2.87	2.88	2.92	2.92	2.95	2.96	2.98	3.03	3.07	3.10	3.12
Safety Event Group	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections	501+ relevant vehicle inspections
Vehicle Inspections	22,429	22,195	21,908	21,842	21,651	21,445	21,262	20,997	20,728	20,505	20,443	20,075	19,847	19,688	19,484	19,405	19,233	18,973	18,843	18,700	18,561	18,431	18,083	17,920	17,200	17,077	16,931	16,829	16,814	16,901	16,997	17,099	17,126	17,081	17,021	17,109	17,102	17,076	17,037	17,065	17,231	17,430	17,574	17,628	17,722	17,913	18,027	18,228	18,345	18,469	18,585	18,779	18,877	19,041	19,082	19,080	19,176	19,661	20,021	20,473	20,883	21,241	21,591	21,418	21,841	21,854	22,085	22,211	22,296	22,564	22,497	22,720	22,749	23,129	23,356	23,583	23,804	24,055	24,271	24,486	24,726	24,523	24,485	24,542	24,493	24,296	24,464	24,782	24,670	24,820	24,793	24,457	24,235	23,729	23,531	23,120	22,616	22,210	21,981	21,568	21,196	20,759	20,251	19,833	19,434	19,030	18,637	18,114	17,678	17,419	16,930	16,611	16,252	15,582	14,830	14,517	14,343	14,244	14,091	13,877	13,691	13,555	13,173	12,888	12,598	12,342	12,174	11,867	11,617	11,413	11,204	11,056	10,993	10,967	10,860	10,729	10,697	11,029	11,287	11,370	11,423	11,568	11,613	11,725	11,793	11,985	12,142	12,292	12,385	12,553	12,782	12,956	13,061	13,207	13,303	13,281	13,173	13,148	13,081	13,086	13,110	13,013	12,978	12,997	12,978	12,947
with Vehicle Maint. Violations	10,444	10,372	10,318	10,300	10,242	10,210	10,146	10,044	9,939	9,802	9,728	9,558	9,457	9,346	9,150	9,166	9,058	8,899	8,827	8,715	8,612	8,522	8,337	8,250	7,737	7,650	7,574	7,486	7,456	7,458	7,445	7,390	7,341	7,303	7,233	7,242	7,204	7,150	7,133	7,102	7,169	7,246	7,307	7,287	7,289	7,380	7,426	7,488	7,504	7,522	7,547	7,580	7,580	7,617	7,629	7,689	7,714	7,863	7,988	8,134	8,313	8,436	8,470	8,379	8,487	8,450	8,457	8,500	8,529	8,552	8,518	8,596	8,592	8,723	8,790	8,882	8,972	9,081	9,153	9,213	9,326	9,267	9,281	9,361	9,348	9,326	9,401	9,502	9,477	9,537	9,584	9,466	9,364	9,215	9,127	8,963	8,746	8,569	8,480	8,301	8,107	7,874	7,661	7,466	7,276	7,083	6,897	6,639	6,404	6,279	6,085	5,938	5,779	5,520	5,197	5,068	4,983	4,944	4,901	4,844	4,799	4,762	4,640	4,549	4,458	4,393	4,323	4,209	4,140	4,082	4,022	4,002	4,005	4,000	3,959	3,931	3,944	4,044	4,145	4,177	4,193	4,231	4,219	4,256	4,282	4,353	4,395	4,457	4,491	4,559	4,657	4,722	4,740	4,776	4,819	4,799	4,769	4,780	4,740	4,760	4,785	4,785	4,831	4,847	4,860	4,872
without Vehicle Maint. Violations	11,985	11,823	11,590	11,542	11,409	11,235	11,116	10,953	10,789	10,703	10,715	10,517	10,390	10,342	10,334	10,239	10,175	10,074	10,016	9,985	9,949	9,909	9,746	9,670	9,463	9,427	9,357	9,343	9,358	9,443	9,552	9,709	9,785	9,778	9,788	9,867	9,898	9,926	9,904	9,963	10,062	10,184	10,267	10,341	10,433	10,533	10,601	10,740	10,841	10,947	11,038	11,199	11,297	11,424	11,453	11,391	11,462	11,798	12,033	12,339	12,570	12,805	13,121	13,039	13,354	13,404	13,628	13,711	13,767	14,012	13,979	14,124	14,157	14,406	14,566	14,701	14,832	14,974	15,118	15,273	15,400	15,256	15,204	15,181	15,145	14,970	15,063	15,280	15,193	15,283	15,209	14,991	14,871	14,514	14,404	14,157	13,870	13,641	13,501	13,267	13,089	12,885	12,590	12,367	12,158	11,947	11,740	11,475	11,274	11,140	10,845	10,673	10,473	10,062	9,633	9,449	9,360	9,300	9,190	9,033	8,892	8,793	8,533	8,339	8,140	7,949	7,851	7,658	7,477	7,331	7,182	7,054	6,988	6,967	6,901	6,798	6,753	6,985	7,142	7,193	7,230	7,337	7,394	7,469	7,511	7,632	7,747	7,835	7,894	7,994	8,125	8,234	8,321	8,431	8,484	8,482	8,404	8,368	8,341	8,326	8,325	8,228	8,147	8,150	8,118	8,075
Vehicle Maint. Violations	16,122	16,032	15,945	15,899	15,856	15,763	15,689	15,569	15,451	15,267	15,193	14,972	14,807	14,626	14,311	14,305	14,091	13,830	13,676	13,471	13,300	13,133	12,810	12,706	12,251	12,086	11,927	11,799	11,689	11,717	11,706	11,512	11,415	11,316	11,198	11,177	11,135	11,040	11,001	10,972	11,017	11,129	11,256	11,205	11,193	11,347	11,425	11,498	11,490	11,481	11,487	11,509	11,494	11,499	11,477	11,616	11,626	11,798	11,998	12,226	12,482	12,687	12,720	12,562	12,743	12,672	12,672	12,804	12,852	12,910	12,859	12,987	12,988	13,194	13,321	13,485	13,621	13,802	13,907	14,009	14,214	14,152	14,187	14,295	14,278	14,227	14,355	14,532	14,513	14,587	14,676	14,455	14,274	14,022	13,883	13,658	13,325	13,070	12,915	12,601	12,324	11,938	11,614	11,330	11,006	10,686	10,399	10,025	9,647	9,454	9,172	8,948	8,714	8,320	7,818	7,600	7,472	7,396	7,345	7,270	7,198	7,165	7,016	6,865	6,737	6,654	6,540	6,311	6,194	6,086	5,995	5,930	5,941	5,922	5,831	5,776	5,790	5,934	6,115	6,141	6,162	6,234	6,172	6,201	6,232	6,309	6,387	6,489	6,538	6,650	6,815	6,899	6,948	7,043	7,116	7,134	7,097	7,146	7,090	7,142	7,163	7,198	7,247	7,306	7,328	7,347