Occasionally, though, a time comes where you would really rather run somewhere in a hurry, or sprint for your life to a safe place.
The idea is that two other movement options are implemented:
Run: This would be faster by 1.5 than typical walking, and blast your fatigue with every room depending on your endurance and agility.
Sprint: This would be 2x faster than walking pace, and would totally destroy your fatigue. Even a high level athlete could only sprint for a couple blocks in a city. Not to mention the effort of dealing with the crowded streets.
Maybe include a chance to trip/fall and cut your leg if you fail an agility check along the way? Maybe also people see you running in their direction from a couple rooms out? A message like "The crowds to the north erupt in angry shouts as a shabby average chica runs in from the east."