The arguments for light rail were mainly related to the environment, urban development and reduction in road congestion. Light rail is estimated to increase the use of public transport from Fana, reducing both local and global pollution. The roads do not have capacity for further growth, and any increase in public transport would need to be taken along the light rail routes on buses—this would give higher operating costs for public transport or higher investment costs for roads. Around the stations, high-density commercial and residential centers can be established. Opponents of the project argued that it is unfair that public transport be funded by car drivers through toll roads. Protests from people in northern and western areas of the city have risen, since they are paying for the system but will not receive the benefits. Another issue has been speed: the line to Nesttun has 15 stops in , giving an average speed of . For people living south of Nesttun, this will give a longer travel time to the city center than with direct buses that do not make intermediate stops.