15. The selection of indicators is based, first of all, on the relevant EEA TERM indicators towards which Estonia needs to develop its transport-rela- ted and environmental reporting. PM,, - base level 1460 tons SOX - base level 1410 tons  Emissions of greenhouse gases from transport vehicles (CO, equivalent tons) + Base level: 2,157,000 CO, equivalent tons. Relative share of empty journeys of vehicles in overall trans- portation (%) +. Base level; 21%. Passenger turnover of public transport (passenger kilometres per year)  Base levels: buses (incl. urban transport): 2,716,000,000 passenger kilo- metres per year airplanes: 1,106,000,000 passenger kilometres per year trains: 248,000,000 passenger kilometres per year sea-going vessels: 541,000,000 passenger kilometres per year Freight traffic turnover Base levels: road transport: 7,641,000,000 ton-kilometres per year rall transport: 10,639,000,000 ton-kilometres per year sea transport: 1,218,000,000 ton-kilometres per year air transport: 4,000,000 ton-kilometres per year Use of fossil fuels in transport (kg of all equivalent per inha- bitant) + Base level: 387.7 kg per inhabitant. The relative share of cars older than ten years in the aggregate number of registered passenger cars (5) L. Base level: 68.7% The relative share of population whose nearest public transport stop is farther away than 0.5-1 km (%) - Base level: 10% The relative share of the employed who go to work by foot or use a bicycle to go to work (%) 1- Base level: 27.2% The relative share of the employed who use public transport to go to work (%) 1. Base level: 29.9% The relative share of the employed who use a personal car or a business car to go to work (96) + Base level-39 596 C C  2 t C Measures (lines of action):