In the safeway driving system the S in SAFE stands for:

Smile

S - Space

Explanation:

Safeway driving system in Texas provides vehicle driving training to people. They are famous driving learning center in Texas.

People of different age from teenagers to aged people categories come here to learn driving. They give information about the traffic rules in Texas and teach safe driving to the people.

There is full form for SAFE.

S - Space

A - Aim

F - Find

E - Eyes

Thus the answer is S - Space