Research on the Relationship between Dynamic Message Sign Control Strategies and Driving Safety in Freeway Work Zones

Table 2

Names and styles of the signs in work zones.

Item	Name	Style	Item	Name	Style
1	Warning sign; (DMS 1)		9	Guide sign
2	Speed limit sign		10	Control DMS; (DMS 6)
3	Control DMS; (DMS 2)		11	Working distance sign
4	Speed limit sign		12	Lane reduction sign
5	Control DMS; (DMS 3)		13	A road fence with a warning lamp
6	Lane reduction sign		14	Lighting facilities
7	Control DMS; (DMS 4)		15	Reduce speed limit sign
8	Control DMS; (DMS 5)		16	Warning flashing light

: sign is designed based on the need of the experiment.