أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
There are various reason behind these incidents.In above4 options first should b Quality .Quality matters alot if you wants a good result in construction field.Second the timescale is the another thing which affects the projects.While achieving the target in a limited time is a difficult task and sometime it affect the project.