Safety perimeter of the railway in Vietnam according to Decree 56/2018/ND-CP

Safety perimeter of the railway in Vietnam according to Decree 56/2018/ND-CP (Internet image) 

Regarding this issue, LawNet would like to answer as follows:

1. Safety perimeter of the railway in Vietnam according to Decree 56/2018/ND-CP

Safety perimeter of the railway according to Article 9 of Decree 56/2018/ND-CP is as follows:

- The vertical overhead clearance of the railway is:

+ at least 5.3 m from the top of the rail, regarding the railway with a gauge of 1,000 mm;

+ at least 6.55 m from the top of the rail, regarding the railway with a gauge of 1,435 mm;

+ at least 7.7 m from the top of the rail, regarding the high-speed rail;

+ at least 6.3 m from the top of the rail, regarding the urban railway that uses overhead power; at least 4.3 m from the top of the rail, regarding the urban railway that uses third rail power;

+ Regarding the operational railway line that fails to satisfy the requirements specified in Points a and b of Clause 1 of Article 9 of Decree 56/2018/ND-CP, when renovating or upgrading the work that infringes upon the safety perimeter of the railway, the project investor shall adopt technical measures to avoid affecting the stability and service life of the railway line, and obtain approval from the competent authority before adoption.

- The horizontal safety perimeter of both sides of the railway, regarding the surface rail, is:

+ 7.5 m from the outer edge of the outer rail, regarding the high-speed rail;

+ 5.4 m from the outer edge of the outer rail, regarding the urban railway;

+ 5.6 m from the outer edge of the outer rail, regarding the remaining railway;

- The safety perimeter of both sides of the railway in a horizontal direction, regarding the rail embankment and rail trench is:

+ 05 m from the bottom edge of the rail embankment or the upper edge of the rail trench;

+ 03 m from the outer edge of the vertical gutter or middle gutter of the road or the outer edge of the defence work/fortification, regarding the suface where the vertical gutter/middle gutter or the defence work/fortification is available.

- Detailed guidelines for determining the safety perimeter of the railway are provided in Clause 1 Appendix II of Decree 56/2018/ND-CP.

2. Safety perimeter of railway bridges in Vietnam

Safety perimeter of railway bridges in Vietnam according to Article 10 of Decree 56/2018/ND-CP is as follows:

-  The vertical overhead clearance of a railway bridge is 02 m from the highest point of the bridge and not less than the overhead clearance of the railway specified in Clause 1 Article 9 of Decree 56/2018/ND-CP.

- The vertical safety perimeter of the bridge is the distance:

+ from the defense signal box on one side of the bridge to the defense signal box on the other side of the bridge, regarding the bridge that has a defense signal box;

+ from the end of one abutment to another and plus (+) 50 m to both sides, regarding the bridge that has a defense signal box;

- The horizontal safety perimeter of the bridge is the distance from outer edge of the bridge to both sides and is determined as follows:

+ Regarding the urban viaducts, 10 m for the high-speed rail bridge; 03 m for the urban railway bridge; 05 m for the remaining railway bridge.

+ Regarding the bridges across urban rivers and canals:

10 m for the high-speed rail bridge; 05 m for the urban railway bridge and the remaining railway bridge shorter than 20 m;

20 m for the bridge that has a length of from 20 m to less than 60 m;

50 m for the bridge that has a length of from 60 m to 300 m;

100 m for the bridge that has a length of over 300 m.

+ Regarding the viaducts outside urban areas, 20 m for the high-speed rail; 03 m for the urban railway bridge; 07 m for the remaining railway bridge.

+ Regarding the bridges across rivers outside urban areas:

20 m for the bridge that has a length of less than 20 m;

50 m for the bridge that has a length of from 20 m to less than 60 m;

100 m for the bridge that has a length of from 60 m to 300 m;

150 m for the bridge that has a length of over 300 m.

+ Detailed guidelines for determining the horizontal safety perimeter of the railway bridge are provided in Clause 2 Appendix II of Decree 56/2018/ND-CP.

- Regarding the operational railway bridge that fails to satisfy the requirements specified in Clauses 1, 2 and 3 of Article 10 of Decree 56/2018/ND-CP, when renovating or upgrading the work that infringes upon the safety perimeter of the railway bridge, the project investor shall adopt technical measures to avoid affecting the stability and service life of the railway bridge, and obtain approval from the competent authority before adoption.

- The safety perimeter under the bridge is 02 m from the lowest point of the super-structure downwards.

- In case a railway bridge crosses a road, inland waterway channel or navigation channel, the safety perimeter under the bridge shall comply with corresponding regulations on road, inland waterway or sea. Technical measures shall be adopted to avoid affecting the stability and service life of the railway bridge, and granted approval by the competent authority before adoption.

- In case the safety perimeter under the bridge fails to comply with the regulations specified in Clause 6 of Article 10 of Decree 56/2018/ND-CP, the organization assigned to manage the railway infrastructure shall take charge and cooperate with a relevant regulatory authority in adopting measures for ensuring safety of railway works and persons upon maintenance and repair of railway bridges.

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