• Merging into traffic in Texas is governed by four laws.Chip Simons/Creatas/Getty Images
  
  The Texas Constitution and Statutes contains the laws that govern the roadways and the rules of the road in the state of Texas. There are four laws that are related to merging traffic, which cover driving on roads marked for traffic, driving on the shoulder, driving on multiple-lane roads and following at a safe distance.
  
  

Driving on an Improved Shoulder

• Section 545.058 of the Texas Statutes states that the operator of a vehicle may only drive on the shoulder of a road in certain situations, including preparing to merge into traffic. The driver of a vehicle may accelerate along the shoulder until a sufficient speed is met to safely enter the righthand lane of traffic.
  
  

Driving on Roadway Laned for Traffic

• Section 545.060 states that the driver of a vehicle on a roadway marked with two or more lanes of traffic must keep the vehicle wholly within a single marked lane unless merging to another lane, which may only be done without creating a danger to other drivers.
  
  

Driving on Multiple-Lane Roadway

• Under section 545.061, a driver on a roadway divided into three or more lanes providing for one-way traffic must yield to traffic coming from the left when entering a lane from the right. This applies to lane changes and vehicles entering the roadway.
  
  

Following Distance

• Section 545.062 of the Texas Statutes states that the driver of a vehicle must keep an adequate distance between his vehicle and the vehicle in front of him to ensure that he can safely stop without causing a collision between the two cars or veering into another vehicle, person or object. When merging on to a roadway, drivers must be certain to leave ample space between their vehicles and the vehicles ahead of them.