Scottish Transport Statistics: No 26

Scottish Transport Statistics: No 26 - 2007 Edition

Table 5.1 Public road lengths (as at 1 April) by class, type and speed limit ^1,2,3

Trunk roads
	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005 ⁴	2006
	kilometres
Motorways
Excluding slip roads	311	329	369	371\|	378	378	378	383	383	383	391
Including slip roads	460	483	532	543\|	537	537	537	539	539	539	559
A roads
Dual carriageway	576	528	475	464	481	481	481	498	512	512	526
Single carriageway	2,432	2,422	2,460	2,473	2,470	2,470	2,470	2,395	2,381	2,381	2,320
Total	3,008	2,949	2,936	2,936	2,951	2,951	2,951	2,893	2,893	2,893	2,847
up to 40 mph	234	211	223	248	248	248	248	264	264	264	218
over 40 mph	2,774	2,738	2,713	2,689	2,703	2,703	2,703	2,629	2,629	2,629	2,629
All trunk roads (*)	3,468	3,432	3,468	3,479	3,488	3,488	3,488	3,432	3,432	3,432	3,405
Local Authority major roads
Motorways
Excluding slip roads	-	-	-	-	-	-	-	-	-	-	-
Including slip roads	-	-	-	-	-	-	-	-	-	-	-
A roads
Dual carriageway	209	212	214	219	225	225	233	228	228	245	242
Single carriageway	7,149	7,161	7,169	7,171	7,188	7,182	7,184	7,190	7,190	7,188	7,182
Total	7,358	7,373	7,383	7,390	7,414	7,407	7,417	7,418	7,418	7,433	7,424
by speed limit:
up to 40 mph	1,331	1,367	1,383	1,385	1,416	1,429	1,437	1,440	1,440	1,453	1,485
over 40 mph	6,027	6,006	6,000	6,005	5,998	5,978	5,980	5,977	5,977	5,980	5,939
All LA major roads (*)	7,358	7,373	7,383	7,390	7,414	7,407	7,417	7,418	7,418	7,433	7,424
Local Authority minor roads
B roads
limit up to 40 mph	1,021	1,046	1,056	1,042	1,053	1,067	1,090	1,092	1,092	1,096	1,141
limit over 40 mph	6,293	6,330	6,303	6,306	6,324	6,325	6,329	6,346	6,346	6,361	6,318
Total	7,313	7,375	7,359	7,347	7,378	7,393	7,419	7,438	7,438	7,458	7,459
C roads
limit up to 40 mph	1,121	1,113	1,131	1,176	1,205	1,219	1,242	1,274	1,274	1,276	1,353
limit over 40 mph	9,287	9,239	9,209	9,153	9,094	9,104	9,079	9,052	9,052	9,059	9,065
Total	10,408	10,352	10,340	10,329	10,299	10,323	10,321	10,325	10,325	10,336	10,419
Unclassified roads
limit up to 40 mph	12,693	13,126	13,321	13,480	13,587	13,717	14,227	14,178	14,213	14,402	14,468
limit over 40 mph	11,837	11,491	11,455	11,497	11,721	11,727	11,720	11,717	11,717	11,716	11,683
Total	24,530	24,618	24,776	24,977	25,308	25,444	25,947	25,895	25,930	26,118	26,151
All LA minor roads	42,252	42,345	42,474	42,654	42,984	43,159	43,687	43,659	43,693	43,911	44,029
All roads (trunk and LA)
Motorways
Excluding slip roads	311	329	369	371\|	378	378	378	383	383	383	391
Including slip roads	460	483	532	543\|	537	537	537	539	539	539	559
A, B and C roads
Dual carriageway	861	821	772	768	787	787	794	798	812	831	838
Single carriageway	27,226	27,229	27,245	27,235	27,255	27,286	27,314	27,276	27,262	27,289	27,310
Total	28,087	28,049	28,017	28,003	28,042	28,073	28,109	28,074	28,074	28,119	28,148
by speed limit:
up to 40 mph	3,706	3,737	3,793	3,850	3,922	3,963	4,016	4,070	4,070	4,090	4,197
over 40 mph	24,381	24,312	24,224	24,152	24,119	24,110	24,093	24,004	24,004	24,030	23,951
Unclassified roads
limit up to 40 mph	12,693	13,126	13,321	13,480	13,587	13,717	14,227	14,178	14,213	14,402	14,468
limit over 40 mph	11,837	11,491	11,455	11,497	11,721	11,727	11,720	11,717	11,717	11,716	11,683
Total	24,530	24,618	24,776	24,977	25,308	25,444	25,947	25,895	25,930	26,118	26,151
All roads (*)	53,078	53,149	53,325	53,523	53,886	54,054	54,592	54,509	54,543	54,776	54,858

(*) including Motorway slip roads
1. Several changes were made to the trunk road network with effect from 1st April 1996 - see the text.
2. From 2000, motorway road lengths are derived from a GIS - see text.
3. Road lengths are physical length rather than "carriageway" length e.g. 10km of dual carriageway counts as 10km, not 20km.
4. There is no change in the trunk road lengths for 2005 over 2004. This is due to new roads being opened after 1st April i.e. too late to be included.
5.Trunk road lengths for these roads have now been derived more accurately using a GIS system from 2006.

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