So much to blog about, so little time…
New type of interchange. Later this month, the Virginia Department of Transportation will open a new “diverging diamond interchange” at the Zions Crossroads exit of Interstate 64. VDOT chose this configuration (see simulation above) in preference to a cloverleaf interchange because it economizes on land. The diverging diamond interchange, adopted first in France, is relatively new to the United States. This is only the sixth one built in this country. (Hat tip: Larry Gross.)
The incredible disappearing traffic congestion. Ever since Elizabeth River Crossings instituted tolls on the Downtown and Midtown tunnels in Hampton Roads, traffic dropped 22% last week compared to pre-toll levels and, miracle of miracles, congestion has evaporated. For the moment, peak tolls are $1 one way. The traffic backup often delayed commuters a half hour. Is $2 in tolls worth saving an hour stalled in traffic? For most people, it probably is.
Green power. Dominion Virginia Power reports that 20,000 customers have signed up for a program that allows them to buy additional increments of “green” power for the equivalent of $2 per 154 kilowatt-hours. Dominion has nearly 2.4 million customers. In other words, about one customer out of 120 believes enough in renewable energy to put their money where their mouth is. This voluntary program is far preferable to a mandatory Renewable Portfolio Standard.
— JAB
