Dedicated bus lanes and prioritized traffic lights on primary routes let buses to travel in the city quite quickly. Buses with very few stopping points are usually just as quick as a personal vehicle or a cab. Buses also assist in reducing congestion on primary routes by taking an additional number of cars off the road. You can also pay a visit to http://www.easybook.com/en-sg/bus/booking/singapore-to-kualalumpur to have your ticket advance booked and to know which bus is suitable for you to travel into if you are planning to travel to KL, Malaysia.
Better use of personal time
Using a bus despite driving frees up additional time to do something which you can enjoy. Use the travel journey to text your mates, catch up on emails, read a paper or do latest Sudoku challenge. Or just relax; let somebody else do the hard work of driving and taking you to your destination and use that time in planning for your day ahead.