Final answer:
Pedestrians should not use bike lanes when sidewalks are present, as bike lanes are specifically designated for cyclist safety. Sidewalk ramps and Braille signs are forms of accessibility required by the Americans with Disabilities Act to assist those with disabilities. Additionally, displacement is independent of the path taken, so different routes to the same point will result in the same displacement.
Step-by-step explanation:
Pedestrians are typically not allowed in bike lanes when there are sidewalks. This is because bike lanes are designed specifically for cyclists to provide them with a safe space separate from both vehicular traffic and pedestrians. The rules are in place to prevent accidents and ensure that each group has a designated space to travel safely.
Pedestrians should use the sidewalks provided for them, and only use the bike lane if there is no sidewalk available and it is safe to do so. It's crucial for pedestrians, cyclists, and drivers to follow the rules to maintain safety for everyone.
Regarding the other questions, sidewalk ramps and Braille signs are indeed forms of accessibility for people with disabilities and are accommodations required by the Americans with Disabilities Act.
This act ensures that people with disabilities have the same opportunities as everyone else to participate in mainstream life.
As for the displacement question, the statement that a person walking 2 blocks east and 5 blocks north will have a different displacement than someone walking 5 blocks north and then 2 blocks east is False.
Displacement is a vector quantity that only depends on the starting point and the ending point, not on the path taken, so both will have the same displacement.