How did the political structure established by Augustus contribute to the strength and longevity of the Roman Empire?

Augustus dismissed the Senate and set up a peaceful dictatorship.
Augustus set up a tetrarchy to divide power among regions of the Empire.
Augustus ended territorial expansion in order to have greater control over Rome.
Augustus appointed governors to rule provinces that were far from central Rome.

Question

How did the political structure established by Augustus contribute to the strength and longevity of the Roman Empire?

 Augustus dismissed the Senate and set up a peaceful dictatorship.
 Augustus set up a tetrarchy to divide power among regions of the Empire.
 Augustus ended territorial expansion in order to have greater control over Rome.
 Augustus appointed governors to rule provinces that were far from central Rome.

nurali · Answer

i think  Augustus dismissed the Senate and set up a peaceful dictatorship.