What is the default maximum speed limit on Texas highways unless otherwise posted?

In Texas, the default maximum speed limit on highways is set at 70 miles per hour unless stated otherwise by posted signs. This speed limit applies to rural highways where there is no specific speed regulation indicated. It is important to be aware of these default limits because they help maintain traffic flow and ensure safety on the roads. While some highways may have different speed limits based on conditions, construction, or local regulations, understanding the default limit is crucial for all drivers to promote safe and responsible driving behavior.