Special purpose acquisition company (SPAC). A special purpose acquisition company (SPAC), sometimes called a blank check company or an empty shell company, uses an initial public offering (IPO) to raise money it will use to purchase or merge with an existing company.
The objective of a cloverleaf is to allow two highways to cross without the need for any traffic to be stopped by red lights, even for left and right turns. The limiting factor in the capacity of a cloverleaf interchange is traffic weaving.
The first cloverleaf interchange built in the United States was the Woodbridge Cloverleaf at intersection of the Lincoln Highway and Amboyânow St. GeorgesâAvenue (now U.S. 1/9 and Route 35) in Woodbridge Township, New Jersey. It opened in 1929, and has been replaced with a partial cloverleaf interchange. The original cloverleaf interchange was designed by the Rudolph and Delano building firm from Philadelphia, and was modeled after a plan from Buenos Aires, Argentina.