In this research, we are testing the relationship between workload and intention to quit. Commercial long-haul truck driver are overburdened with work. Work overload is widely believed to be one of the sources lead to the work stress. Research on work overload indicates that it is related to physiological indicators of stress, such as elevated serum cholesterol and increased heart rate to psychological measures of stress (Riggio, 2003). Andrew & Jex(2008) stated number of researchers have proven that is positive relationship between workload, stress and turnover intention, it is a sources of mental stress for employees. Beehr (1992) and Aiello (1999) also found that the significant relationships between workload and stress and stress and turnover, this researcher also assume the stress is the main factor affected by workload and intention to quit. Mackay (2004) said working in stress condition has negative impact performance on their work and health of employees. Employees feel to quit because of heavy workload, it may bring in stress and impact working performance. Workload is the intensity of job assignment; it is the main sources of mental stress for employees. There are many ways that stress sign are reflected in the workplace. Uncertain outcome is normally come out with working in stress (Robinson, 1996). (Hussain Shah, Jaffari, Aziz , Ejaz, Ul-Haq, & Raza, 2011).
Leontaridi (2002) mentions workload stress leads to quitting and it comes to upward movement because the better paid jobs are the one incurring the most stress then stress should have no effect on absenteeism. Over workload stress is noxious characteristic of the working environment responsible for impairing employee performance it may be expected that its effect individual quitting decision. Therefor it is useful to consider there is the strong relationship between the over workload stress and intention to quit. (Leontaridi & Ward, 2002)(责任编辑：BUG)