Traffic safety for the conservation measure D288R.

- produce traffic safety 4 + 2,

- establish traffic safety 0 + 5,

- establish traffic backups of shorter duration in several nights,

- manufacture 13 000 m of protective walls T3 / W2,

- make 2,000 m of H1 / W4 protective walls,

- produce 40 000 m of yellow marking.