Final answer:
The speed limit in urban districts of Texas is 30 mph unless signs indicate otherwise. This limit serves to maintain safety in areas with high pedestrian and vehicle traffic, although enforcement may provide some leeway for minor infractions.
Step-by-step explanation:
In Texas, the speed limit in urban districts is 30 mph unless otherwise posted. This standard is in place to ensure safety in areas where there is typically more pedestrian and vehicular traffic. While there may be some tolerance for slight exceedance of the speed limit due to inaccuracies in speedometer readings, it does not apply when the speed is significantly over the limit. In addition, the enforcement of this speed limit may vary depending on various factors, such as local policies and driving conditions.