To support implementation of Senate Bill 10-191, the Colorado Department of Education has developed model evaluation systems for principals (includes assistant principals) and teachers that meet all requirements of the law and State Board of Education Rules. The Colorado State Model Evaluation System for principals was piloted in 27 districts during the 2011-12 school year; the model principal and teacher systems are both being piloted this year (2012-13) prior to being offered as optional evaluation systems for all Colorado districts in 2013-14. Feedback from pilot districts is being collected to influence improvements to the principal and teacher systems.
The goal of this research project is to evaluate the performance of the crumb rubber test sections compared with the conventional control section and depending on performance, develop Colorado-specific materials and construction specifications for ground tire modified asphalt pavements. Also, the research project aims to develop guidelines and best management practices for the construction of ground tire modified asphalt pavements. Transverse cracking began in the rubber modified sections after 22 months of service and longitudinal cracking began after 29 months. The control sections have no transverse cracking to date with longitudinal cracking beginning to appear after 56 months.