Simply put majority of the bus drivers are not qualified to drive, from the issuance of the driver's license alone many did not go through the normal process, plus the bus companies are at fault too, they should conduct strict screening of their applicants.

As for the fix salaries vs the boundary system, I'm in favor of the fix salary scheme. No pressure on them to pick up more passengers ( which means no overloading and safety for the passengers ) and to complete more routes for the day ( lesser pollution for the day.)