Traffic revenue was € 202.5 million in 2016. This is down from 2015, due to decreased ridership following the attacks (partial network closure) and clients moving to surface transport that is more susceptible to faredodging than the metro. The impact has been particularly pronounced in ticket sales (occasional passengers), which generate the highest proportional profit margin. Revenue has started to rise again since November, following the passenger number curve for public transport. The reduction in the price of school season tickets for the first child (€ 50 instead of € 120) has also contributed to the drop in traffic income. Advertising revenue increased by 17.2% following the introduction of the information screens and rental revenue increased by 11.8% thanks to the growth of commercial signage in the metro.
The business's operating expenses were € 610,014 million. Salary costs (€ 426,629 million) remained stable compared with 2015.The financial impact of the increased workforce was counterbalanced by the drop in costs linked to non-active employees. Operating costs (excluding personnel costs) dropped very slightly (€ 104,997 million), despite the higher cost of electricity and increased fuel costs resulting from the combined effect of the increased kilometre production and the associated consumption.
STIB monitors the development of its "SEC" coverage ratio, calculated using the method recommended by the Institute of National Accounts. This ratio does not take into account expense and income items. In 2016, the coverage ratio of the company's expenses from its own income, excluding subsidies, reached 41.1%. Since 2014, the annual allocation that enables STIB to improve its transport offer has been considered a subsidy, not a transport service remuneration. It is therefore excluded from the calculation. Consequently, this has a downward impact on the coverage ratio due to increased spending at a faster rate than the traffic revenues, which do not cover all the transport costs. The phenomenon is increasingly visible because the allocation for improving the offer has experienced very strong growth over the last few years.