What is typically used to increase the stability of barricades in windy conditions?

Answer: C — Sand bags

To increase the stability of barricades in windy conditions, sandbags are commonly used. Sandbags provide additional weight and help anchor the barricades, preventing them from being easily moved or toppled by strong winds. The design of sandbags allows for easy placement and adjustment, ensuring that they can be strategically positioned around barricades to enhance stability effectively. Wooden pallets, while sometimes used to create barriers or foundations, do not offer the same level of stability against wind as sandbags. PVC pipes are generally lightweight and are not typically used as stabilizing materials in windy conditions, as they would not provide sufficient weight or anchoring capability. Dirt bags, which can serve a similar purpose to sandbags, are less commonly specified and may not have the same level of acceptance or standardization in temporary traffic control setups compared to sandbags.