Final answer:
In assessing road crossing safety, factors such as vehicle speed and distance are vital. A safe distance to consider before crossing is at least 28 meters (8 car lengths), and traffic signals play a significant role in improving safety by controlling vehicle speeds and reducing accidents.
Step-by-step explanation:
The safety on roads and the decision to cross a highway involve several factors. When considering if a rabbit will be able to cross all 3 lanes of the freeway safely with a vehicle travelling in the furthest lane, one must assess the speed of the vehicle and the rabbit's speed. As for humans, crossing the road outside a pedestrian crossing is generally not safe, especially if vehicles do not adhere to the speed limit. The colour of the car does not affect the speed at which it travels, but visibility can be a factor in safety.
To estimate a safe distance for crossing, one should consider the car's speed and distance. A general rule could be to allow at least 28 meters, equivalent to the length of 8 cars, which may offer enough time for a person to cross safely, but this greatly depends on both the car's speed and the pedestrian's speed. Traffic signals greatly contribute to safety, as they regulate the flow of vehicles, compelling them to slow down, which can reduce the likelihood of accidents.
The installation of a traffic signal, as evidenced in a model cause-and-effect paragraph, greatly contributes to pedestrian safety by controlling traffic speed. Increased safety measures, including more signage and traffic signals, are crucial as the number of vehicles and roads rises. A traffic signal encourages drivers to respect the speed limit, thereby lowering the chance of accidents and improving safety for both drivers and pedestrians.