Final answer:
The specific speed limit for all tunnel ramps and the head-of-stand roadway between B and C piers is not provided; however, the speed limit in towns and cities is typically 60 km/hr, which is equivalent to 16.67 m/s or 37.28 mi/h, and can be used as a reference.
Step-by-step explanation:
The speed limit specified in the question is not clearly mentioned in the provided information. However, if we refer to the hint provided about speed limits in towns and cities, which is 60 km/hr, and convert it to both meters per second (m/s) and miles per hour (mi/h), we can approximate an answer for a similar context. For example, using the data from the problem set given, 60 km/hr (kilometers per hour) is equivalent to 16.67 m/s (meters per second) because 60 km divided by 3.6 equals 16.67 m/s. Now, for miles per hour, given that 1 kilometer is approximately 0.621371 miles, 60 km/h would be roughly 37.28 mi/h.
Additionally, to calculate how many meters a car travels at the speed limit within a specific time, you would need to know the speed of the car in meters per second and the time in seconds. Then, you multiply these two values to find the distance traveled. For instance, if a car is traveling at the speed limit of 60 km/hr or 16.67 m/s, and it takes you 10 seconds to walk across a ramp, the car would have traveled 166.7 meters in that time (16.67 m/s * 10 s).
Complete question:
What is the speed limit in all tunnel ramps and the head-of-stand roadway between B and C piers?