What were four positive results of the pinckney treaty?

The Pinckney Treaty was contracted by the Spain and US on October 27, 1795, to finish an argument between the two republics over Mississippi River trade and land settlement. 

There outcomes of this treaty are:

By the time Pinckney attained to discuss with Spain on behalf of the US, the political tides had twisted in his approval. Spain's military was so enfeebled that Pinckney was not required to make any concessions in return for those conceded by Spain to the United States.

The treaty was a substantial victory for the new republic;

greatly contributed to westward settlement;

US control of the Mississippi River; and

Improved Trading abilities since they gained the capability to trade out of the Gulf of Mexico.

The answer is installation.