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[F1ANNEX III U.K. INDICATIVE ELEMENTS OF NETWORK-WIDE ROAD SAFETY ASSESSMENTS

1. General: U.K.

(a)

type of road in relation to the type and size of regions/cities it connects;

(b)

length of road section;

(c)

area type (rural, urban);

(d)

land use (educational, commercial, industrial and manufacturing, residential, farming and agricultural, undeveloped areas);

(e)

property access points density;

(f)

presence of service road (e.g. for shops);

(g)

presence of road works;

(h)

presence of parking.

2. Traffic volumes: U.K.

(a)

traffic volumes;

(b)

observed motorcycle volumes;

(c)

observed pedestrian volumes on both sides, noting along or crossing ;

(d)

observed bicycle volumes on both sides, noting along or crossing ;

(e)

observed heavy vehicle volumes;

(f)

estimated pedestrian flows determined from adjacent land use attributes;

(g)

estimated bicycle flows determined from adjacent land use attributes.

3. Accident data: U.K.

(a)

number, location and cause of fatalities by road user group;

(b)

number and location of serious injuries by road user group.

4. Operational characteristics: U.K.

(a)

speed limit (general, for motorcycles; for trucks);

(b)

operating speed (85th percentile);

(c)

speed management and/or traffic calming;

(d)

presence of ITS devices: queue alerts, variable message signs;

(e)

school zone warning;

(f)

presence of school crossing supervisor at prescribed periods.

5. Geometric characteristics: U.K.

(a)

cross section characteristics (number, type and width of lanes, central median shoulders layout and material, cycle tracks, foot paths, etc.), including their variability;

(b)

horizontal curvature;

(c)

grade and vertical alignment;

(d)

visibility and sight distances.

6. Objects, clear zones and road restraint systems: U.K.

(a)

roadside environment and clear zones;

(b)

fixed obstacles at the roadside (e.g. lighting poles, trees, etc.);

(c)

distance of obstacles from roadside;

(d)

density of obstacles;

(e)

rumble strips;

(f)

road restraint systems.

7. Bridges and tunnels: U.K.

(a)

presence and number of bridges, as well as relevant information concerning them;

(b)

presence and number of tunnels, as well as relevant information concerning them;

(c)

visual elements representing hazards for the safety of the infrastructure.

8. Intersections: U.K.

(a)

intersection type and number of arms (noting in particular the type of control and the presence of protected turns);

(b)

presence of channelisation;

(c)

intersection quality;

(d)

intersecting road volume;

(e)

presence of level crossings (noting, in particular, the type of crossing and whether they are manned, unmanned, manual or automated).

9. Maintenance: U.K.

(a)

pavement defects;

(b)

pavement skid resistance;

(c)

shoulder condition (including vegetation);

(d)

condition of signs, markings and delineation;

(e)

condition of road restraint systems.

10. Vulnerable road users' facilities: U.K.

(a)

pedestrian and cycling crossings (surface crossings and grade separation);

(b)

cycling crossings (surface crossings and grade separation);

(c)

pedestrian fencing;

(d)

existence of sidewalk or separated facility;

(e)

bicycle facilities and their type (cycle paths, cycle lanes, other);

(f)

quality of pedestrian crossings with regard to the conspicuity and signposting of each facility;

(g)

pedestrian and cycling crossing facilities on entry arm of minor road joining network;

(h)

existence of alternative routes for pedestrians and cyclists where there are no separated facilities.

11. Pre/post-crash systems for traffic injury and gravity mitigation elements: U.K.

(a)

network operational centres and other patrolling facilities;

(b)

mechanisms to inform road users of driving conditions in order to prevent accidents or incidents;

(c)

AID (automatic incident detection) systems: sensors and cameras;

(d)

incident management systems;

(e)

systems for communicating with emergency services.]