I. INTRODUCTION

II. SPATIO TEMPORAL DATA

III. A PRIMER ON DIFFERENTIAL PRIVACY

A. Algorithms for Differential Privacy

B. Software and Tools for Differential Privacy

IV. DIFFERENTIAL PRIVACY METHODS ON SPATIO TEMPORAL DATA IN TRANSPORTATION

A. Real-time Traffic Data Scenario

B. Trajectory Data Publication

C. Providing Spatio temporal correlated Noise for Differential Privacy

V. OPEN CHALLENGES