Final answer:
The number of closed lanes during road work varies per project, and drivers can identify these closures by following traffic signs and signals. Yoknapatawpha County's Highway 56 and Vienda Drive are examples of roadways that can be closed due to construction. Safe crossing distance can't be universally quantified but should be enough to not disrupt traffic.
Step-by-step explanation:
The number of lanes that may be closed due to road work can vary depending on the scope of the project and the existing road conditions. There's no set number of lanes that will always be closed, as it's specific to each project. To identify the closed lanes, generally, traffic signs and signals are placed ahead of the construction zone to inform drivers of upcoming closures. Warning signs can include arrow boards, cones, barrels, and barriers directing traffic away from the closed lane and into an open one.
For example, in Yoknapatawpha County, road construction caused closures along parts of Highway 56 and Vienda Drive. In such cases, drivers need to be attentive and follow the signs posted. These signs will usually indicate which lane is closed and may also provide detour information if an entire road is closed for construction.
Regarding the safe distance for crossing a road, it cannot be quantified in car-lengths without understanding specific road conditions, including car speed, visibility, and road layout. However, a safe rule of thumb would be to ensure there is enough space for you to comfortably cross without causing traffic to abruptly stop or slow down significantly.