Current meteorological data
Air temperature: 41.54 (°F)
5.3 (°C)
Wind speed:2 (km/h)
Wind direction: W-S-W, 243.0 °
Global radiation: 39.9 (W/m²)
Act. UV-Index: 0.12
Precipitation: 0.0 (ltr/m²)
(Updated: 12/08/2021, 13:00,
S-Mitte, Amt für Umweltschutz
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Prioritization of the individual measures within the traffic sector

Considering the minimum scenario alone, the highest priorities are given to the measures V5 "Speed limit on motorways", V10 "Mobility advice" and V11 "Traffic education/fuel efficient driving".

The major obstacle for the implementation of measure V5 is the fact that the City of Stuttgart is not the responsible authority for the motorways crossing its territory and therefore is not empowered to take decisions in this context. Even if the measures of the desired scenario are included as well, the order of precedence does not change.

Measures aiming at increasing the attractiveness of the public transport system (measures V1, V13 and V14) receive the average priorities 3, 4 and 5. Despite their big CO2 reduction potentials, high investment and operating costs lead to a lowering of their priority levels. The same applies to measure V16 "Telematics measures".

Major obstacles for the implementation of the very cost-intensive measures V1, V14 and V16 are the current state of the economy, the situation of public budgets as well the need to coordinate further steps with the whole region.

Due to their low costs and relatively high CO2 reduction potentials of about 1 % each, the implementation of the measures V10 (Establishment of mobility advice centres) and V11 (Traffic education and fuel efficient driving) must be of high priority. What should be ensured is the service by mobility advice centres to provide information on carpooling (V7) as well.

Although the measures V1, V3, V13 and V14, which aim raising the attractiveness of public transport and bike traffic, possess the highest CO2 reduction potentials, they are financially not feasible (with the exception of the promotion of bike traffic) when only climate protection matters are taken into account. It is rather necessary to consider their whole range of impacts, which vastly exceeds the aspect of climate protection. As the ratio between the amount of saved CO2 and the expected costs is relatively favourable, the short-term implementation of the measures V1 and V3 is recommended.

Stuttgart's City Council does not have the authority to decide on a general speed limit on motorways in the urban area of Stuttgart. But considering the measure's CO2 reduction potential of more than 1 % and its virtually cost-neutral implementation, it is advisable to act upon the responsible bodies on the federal and national level to achieve this measure's realisation.

The measures concerning traffic reducing urban land use planning (V2) as well as the structuring of development activities (V17) can only be realized in the long term and promise relatively low CO2 reductions. But as these effects are expected to be achieved for free and to persist without further investments for an unlimited period of time, their implementation should not be given up.


© City of Stuttgart, Office for Environmental Protection, Section of Urban Climatology