What could be a consequence of neglecting to mark utility lines before excavation?

Neglecting to mark utility lines before excavation can lead to serious safety hazards, particularly injury to workers due to accidents. When underground utility lines such as gas, water, or electric are not identified, there is an increased risk of accidental strikes during excavation activities. These accidents can result in explosive situations, electrical shocks, or water leaks, all of which pose significant dangers to workers on site. This emphasizes the critical importance of utility line marking as a preventive measure to ensure safety during excavation activities.

The other options suggested do not logically follow the consequence of neglecting to mark utility lines. For example, frequent maintenance checks would not be a direct result of unmarked lines; in fact, it could increase the need for maintenance due to damage incurred during excavation. Improved installation techniques are also unrelated, as proper marking is fundamentally about safety rather than technique improvement. Lastly, reduced repair costs are unlikely since damaging utility lines can lead to costly repairs and additional expenses.