TII Publications
DN-GEO-03060
Geometric Design of Junctions (priority junctions, direct accesses, roundabouts, grade
separated and compact grade separated junctions)
April 2017
Page 42
Figure 5.13: Direct Access Bend In Crossing
Figure 5.14: Direct Access Bend Out Crossing
The cycle track pavement construction must be carried across the private entrance to clearly indicate
priority to cycle traffic and the road entrance should be at the same level as the cycle facility. Cycle
symbol road markings should be provided at the crossing to reinforce the arrangement and a colour
contrast treatment should be provided along the cycle route warning cyclists of the upcoming conflict
with motorised traffic.
TII Publications
DN-GEO-03060
Geometric Design of Junctions (priority junctions, direct accesses, roundabouts, grade
separated and compact grade separated junctions)
April 2017
Page 45
Table 5.4
: ‘x’
Distances on the minor road for visibility measurements
Major road use
Minor road use
Standard
‘x’
Distance(m)
All roads
All junctions and accesses, Stop
control
Desirable Minimum
3.0
All roads
Cycleway
Desirable Minimum
4.0
All roads
Cycleway
Absolute Minimum
2.0
National roads
Simple Junctions, Stop control
Relaxation
2.4*
Regional & Local
Roads
All junctions and accesses, Yield
control (where there are no
relaxations associated with the
junction layout)
Desirable Minimum
Max. 9.0
Regional & Local
Roads
Accesses,
Lightly trafficked
Relaxation
2.0
All roads
All junctions and accesses
Desirable Maximum
9.0
From the point “x” metres bac
k from the major road a driver approaching the junction along the minor
road shall be able to see clearly points to the left and right on the nearer edge of the major road
running carriageway at a distance given in Table 5.5, measured from its intersection with the centreline
of the minor road. This is called the ‘y’ distance and is defined in
Figure 5.15a and b.
Table 5.
5: ‘y’ Visibility
distances from the minor road
Design Speed of major
road(km/h)
‘y’ Distance(m)
70
120
85
160
100
215
120
295
On national road
s the full ‘y’ distance must be achieved
to the high object 1.05m.
5.6.3.3
Visibility standards with a curved major road
If the line of vision from the approach road lies partially within the major road paved area, it shall be
made tangential to the nearer edge of the major road paved carriageway (including hard shoulder or
hard strip), as shown in Figure 5.16a and b.