### Building (Private Streets and Access Roads) Regulations 《建築物(私家街道及通路)規例》

6. Width of access roads
(1) Save as provided in paragraph (2), the width of the carriageway of every access road shall be not less than 5 m and the width of the footpath therein shall be not less than 1.6 m.
(2) Where—
(a) an access road provides or will provide access to not more than 12 separate buildings or not more than 24 flats, whether such flats are in the same building or not; and 
(b) the aggregate of the areas of the floors in all the buildings or flats does not exceed 3 500 m2; and
(c) spaces, to enable vehicles to pass, are provided at distances along the access road not exceeding 60 m in length,
the width of the carriageway of the access road may be not less than 2.75 m and the width of the footpath not less than 1.5 m.
(L.N. 294 of 1976)

7. Pedestrian ways
Every pedestrian way shall be—
(a) not less than 3.5 m wide; and (L.N. 294 of 1976)
(b) so protected as to prevent vehicles entering therein.

8. Kerb radius
At every junction of a private street, cul-de-sac or access road with any street, the radius of the kerb line shall—
(a) where the footpaths in the streets or in the cul-de-sac or access road and the street, as the case may be, are of the same width, be not less than the width of such footpaths; or
(b) where such footpaths are of different widths, be not less than the width of the wider footpath.

9. Junctions to be at right angles, etc.
The junction of any private street, cul-de-sac or access road with any street shall be made at right angles, and
(a) where the junction is of a new private street or cul-de-sac with an existing street, the line of the carriageway of the new private street or cul-de-sac shall continue at such angle for a distance of not less than 30 m from the place at which such street or cul-de-sac enters the junction;
(b) where the junction is of 2 or more new private streets, the line of the carriageway or each such street shall continue at such angle for a distance of not less than 30 m from the place at which each street enters the junction; and
(c) where the junction is of an access road with a street, the line of the carriageway of the access road shall continue at such angle for a distance of not less than 7.5 m from the place at which such access road enters the junction.
(L.N. 294 of 1976)

### Building (Private Streets and Access Roads) Regulations 《建築物(私家街道及通路)規例》

10. No undulation on major street
The carriageway of any minor street shall, at the junction of such carriageway with the carriageway of a major street, be graded into the carriageway of such major street in such a manner as to avoid undulation on the major street.

11. Gradients
(1) Subject to the provisions of paragraphs (2) and (3), no private street, cul-de-sac or access road shall have a gradient greater than 1 in 6.
(2) In every private street and cul-de-sac, the gradient shall, for a distance of 30 m from the junction of the private street or cul-de-sac with any street, not exceed 1 in 30.
(3) In every access road, the gradient shall, for a distance of 7.5 m from the junction of the access road with any street, not exceed 1 in 30.
(L.N. 294 of 1976)

12. Horizontal curves
(1) The radius of any horizontal curve in any private street or cul-de-sac shall be not less than 30 m measured to the centre line of the carriageway of the street or cul-de-sac.
(2) The radius of any horizontal curve in an access road shall be not less than 9 m, measured to the centre line of the carriageway of the access road.
(L.N. 294 of 1976)

13. Vertical curves
Any vertical curve in a private street, cul-de-sac or access road shall be such that from a point 1 m above any part of the carriageway thereof a clear view can be obtained of the top of an object 1 m high at all distances along the carriageway up to 40 m from such point.
(L.N. 294 of 1976)

### Building (Private Streets and Access Roads) Regulations 《建築物(私家街道及通路)規例》

14. Widening of private streets and cul-de-sacs on curve in certain cases
Where, under regulation 27, the Building Authority permits the radius of a horizontal curve in any private street or cul-de-sac to be less than 30 m, the carriageway thereof shall be gradually widened, on the outer edge of the curve, from the tangent points to the middle point of the curve so that, at the middle point of the curve, the widening is not less than that specified in Table III. (L.N. 294 of 1976)
Table III

Width of carriageway  Permitted radius of curve at centre line  Minimum widening   6 m or less  Less than 18 m  1.2 m     18 m to 24 m inclusive  1.0 m     Over 24 m  0.6 m   More than 6 m  Less than 18 m  1.0 m     18 m to 24 m inclusive  0.6 m     Over 24 m  0.3 m 
(L.N. 294 of 1976)

15. Turning space for vehicles in cul-de-sacs and access roads
(1) There shall be provided, at the closed end of every cul-de-sac, adequate space to enable vehicles to turn.
(2) Where any access road is not a thoroughfare, there shall be provided, at that end of the access road furthest from its junction with a street, adequate space to enable vehicles to turn.

16. Surfacing of private streets, cul-de-sacs and access roads
The carriageway of every private street, cul-de-sac and access road shall be surfaced with—
(a) concrete not less than 150 mm thick, laid on rolled hardcore not less than 75 mm thick; or (L.N. 439 of 1990)
(b) bitumen macadam not less than 75 mm thick, laid on rolled hardcore not less than 200 mm thick, and covered with a layer of fine bitumen macadam not less than 25 mm thick; or
(c) other approved material.
(L.N. 156 of 1977)