DETAIL
a.More than 50 country adopted for LE
b. Diagram based on layer
c. Minimal file size, saving disk space
d. support JPG, BIP, PDF, PNG...etc.
e.More than 800 drawing items
f. same interface as VISIO
g.Able to combine road, switch line, road type, crash tendency
h.Items can change location, angle and color
i.can store items into my favorite folder