Through solar panels placed on the surface, Cheng Tsung's traffic lights obtain natural power. The traffic system uses color-changing LED technology instead of traditional bulbs. This enables the visually-impaired or colorblind to easily read the signal, making it extremely user-friendly.
Implications - The eco movement has swept across a large cross-section of society and has transcended niche groups. This group values green design but does not want to sacrifice aesthetics. Companies should consider the mind-set of this group that wants both function and form in their products.