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2. Lifeline (safety) - Wikipedia

   en.wikipedia.org/wiki/Lifeline_(safety)

   Horizontal lifeline systems require careful engineering due to the specific nature of the structures they are designed for, ensuring safety in high-risk areas. [ 3 ] Lifeline wire has traditionally been available in 1/8" ( 3.175 mm) and 3/16" ( 4.763 mm) wire diameters, with a soft but durable vinyl coating increasing the effective diameters to ...

3. Clearance (civil engineering) - Wikipedia

   en.wikipedia.org/wiki/Clearance_(civil_engineering)

   The clearance values may depend on the heights and types of the obstacles. For example, in Flanders, the horizontal clearance next to the paths for poles, lampposts and trees is 0.75 metres (2 ft 6 in), and for walls and fences is 1 metre (3 ft 3 in). The horizontal clearance from the edge of the path to the curb is based on curb heights. For ...

4. Fall arrest - Wikipedia

   en.wikipedia.org/wiki/Fall_arrest

   Safety net Safety line. Fall arrest is the form of fall protection which involves the safe stopping of a person already falling. It is one of several forms of fall protection, forms which also include fall guarding (general protection that prevents persons from entering a fall hazard area e.g., guard rails) and fall restraint (personal protection which prevents persons who are in a fall hazard ...

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7. Minimum railway curve radius - Wikipedia

   en.wikipedia.org/wiki/Minimum_railway_curve_radius

   The gentler the curves, the greater the visibility, thus boosting safety via increased situational awareness. The earliest rails were made in short lengths of wrought iron , [ citation needed ] which does not bend like later steel rails introduced in the 1850s.