Research on Recognition and Evaluation of Traffic Guide Sign

Table 1

Main influence factors of guide sign recognition.

Influence factors	Contents
Static elements	Shape, size, ground color, setting position, sign height, color contrast, sign number, and road complexity
Dynamic elements	Static and kinetic eyesight, response time, speed, illumination, reflection, indistinct degree, occlusion degree, character number, size and complexity, weather, traffic condition, vehicles and machinery, and motor ability of driver