On May 31, 2011 a comprehensive parking analysis conducted by Traffic Planning and Design, Inc. (TPD) was submitted to Allentown Economic Development Corporation. The analysis stated the total number of parking spaces within the study area, between the public and private parking garages and surface lots, was of approximately 7,376 parking spaces. As a result of this parking analysis, the existing spaces and proposed construction of an additional 500 parking spaces to be built with this development, will adequately accommodate the highest peak period parking demands of the proposed Allentown arena and mixed-used development. In comparison, Coca-Cola Park on Allentown's east side has 2,500 parking spots available. Also on May 31, 2011 a comprehensive traffic analysis conducted by Traffic Planning and Design, Inc. (TPD) was submitted to Allentown Economic Development Corporation. The report stated that the existing roadway infrastructure can accommodate the new traffic generated by the proposed development. Conditions will be further improved with the recommended improvements. Some concern about the PPL Center is centered on the cost of the arena relative to the cost of other dedicated American Hockey League arenas in the country. Nathan Benefield, the director of Public Analysis for The Commonwealth Foundation for Public Policy Alternatives, a Pennsylvania free-market think tank which opposes public funding of stadiums, believes that the PPL Center benefited from funding a plan with no cap on public money beyond the annual revenue generated by the zone. As of October 2012, $224.3 million in bonds have been sold.  2014: 2015: 2016: 2017: 2018: 2019: 2020: