|
To change a center flow lane on the Roosevelt Bridge from Arlington, Virginia to Washington, DC they have a special vehicle to move the concrete dividers so that there is an extra lane inbound in the morning and an extra lane outbound in the afternoon. As I remember reading in the paper the vehicle cost about $500,000 US to build 20+ years ago and several hundred dollars a day to run. What a cost savings eink would be in that case. (The speed on the bridge at rush hour is never enough to require concrete dividers for safety.)
The fear I have of such technology is all of those small police departments that use speed traps to fund their operations from out-of-towners. It says 65 when you pass it and 35 when they write the ticket. Since e-ink looks so real it might even fool some of us.
|