Final answer:
The speed limit at a 'blind' intersection without STOP or YIELD signs is not explicitly provided, but generally, drivers should approach with caution and may assume the default speed limit in residential areas, usually 25 mph. Always adhere to traffic regulations to ensure safety.
Step-by-step explanation:
When you approach a 'blind' intersection where you cannot see at least 100 feet down the cross street and there are no STOP or YIELD signs, the speed limit is not clearly defined by the scenario provided. However, the general rule of thumb is to approach any intersection with caution, especially when visibility is impaired.
In many jurisdictions, the unposted speed limit in urban residential areas is typically 25 miles per hour, and in some cases, it might be lower depending on local laws and regulations. A traffic signal could be installed to improve safety by enforcing drivers to slow down and not speed through the intersection.
Furthermore, while some drivers tend to go over the speed limit, it is important to adhere to the de facto speed limit, which is generally a speed at which you are less likely to be pulled over by the police. Consistently exceeding the speed limit or displaying reckless driving behavior, such as not slowing down at an intersection with limited visibility, could lead to a traffic ticket. Always practice safe driving habits and follow traffic laws to ensure the safety of all road users.