Develop a consequence for each quality standard and evaluate it as a regular part of your project postmortem.
There are so many factors due to which project deadlines are slipped. Not planning well ahead, not hiring skilled resources or not paying good to skilled resources, not providing professional environment and sufficient resources are very basic reasons which people ignore and underestimates. In short, having a good PLAN summarizes all this. So, plan well, ahead of time, and plan for everything.