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The effects on GHG emissions of a reduction in the speed limit from 50 km/h to 30 km/h are dependent on multiple factors, including the type of model used to assess the effects (average speed or microsimulation), and it is difficult to draw generalised conclusions. For a typical New Zealand traffic mix, VEPM predicts that a reduction in average speed from 50 km/h to 30 km/h would increase CO2-e emissions, from vehicles on the affected road, by 24%.

In average speed models the emission functions tend to be quite flat in the range 60-100 km/h.

Overall, this is consistent with findings in literature and we consider it likely that speed limit changes from 100 km/h to 80 km/h will result in small reductions in CO2 emissions from vehicles travelling on the affected roads, in the order of 10% or less.

Nach HBEFA 4.1 (INFRAS AG 2019) liegen die CO2-Emissionen im flüssigen Verkehr bei Tempo 120 rund 21 % und bei Tempo 100 rund 33 % niedriger als auf Autobahnstrecken ohne Geschwindigkeitsbeschränkung.

In Deutschland gilt auf den Autobahnen freie Fahrt —> BULLSHIT! nicht überall!!!

Tempolimit auf Autobahnen: Die Fakten https://perma.cc/RB4D-T4BU

Bei Einführung eines Tempolimits von 120 km/h auf Bundesautobahnen würden die Treibhausgasmissionen des Straßenverkehrs durch die Verringerung der durchschnittlichen Geschwindigkeit um 2,9 Prozent gesenkt (minus 4,5 Millionen Tonnen CO2-Äquivalente im Jahr 2018).

Bezogen auf das Jahr 2021 läge die Minderungswirkung bei insgesamt 6,0 Millionen Tonnen CO2-Äquivalente (Tempo 120 auf Autobahnen) beziehungsweise 7,3 Millionen Tonnen CO2-Äquivalente (Tempo 120 auf Autobahnen und Tempo 80 auf Außerortsstraßen) https://perma.cc/99DK-FZXP

Tempolimit: Für Klimaschutz und Sicherheit

PS: 60 mph = 97km/h

More about road fatalities related to speed on https://www.tgoop.com/CarAccidentsFacts/112



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The effects on GHG emissions of a reduction in the speed limit from 50 km/h to 30 km/h are dependent on multiple factors, including the type of model used to assess the effects (average speed or microsimulation), and it is difficult to draw generalised conclusions. For a typical New Zealand traffic mix, VEPM predicts that a reduction in average speed from 50 km/h to 30 km/h would increase CO2-e emissions, from vehicles on the affected road, by 24%.

In average speed models the emission functions tend to be quite flat in the range 60-100 km/h.

Overall, this is consistent with findings in literature and we consider it likely that speed limit changes from 100 km/h to 80 km/h will result in small reductions in CO2 emissions from vehicles travelling on the affected roads, in the order of 10% or less.

Nach HBEFA 4.1 (INFRAS AG 2019) liegen die CO2-Emissionen im flüssigen Verkehr bei Tempo 120 rund 21 % und bei Tempo 100 rund 33 % niedriger als auf Autobahnstrecken ohne Geschwindigkeitsbeschränkung.

In Deutschland gilt auf den Autobahnen freie Fahrt —> BULLSHIT! nicht überall!!!

Tempolimit auf Autobahnen: Die Fakten https://perma.cc/RB4D-T4BU

Bei Einführung eines Tempolimits von 120 km/h auf Bundesautobahnen würden die Treibhausgasmissionen des Straßenverkehrs durch die Verringerung der durchschnittlichen Geschwindigkeit um 2,9 Prozent gesenkt (minus 4,5 Millionen Tonnen CO2-Äquivalente im Jahr 2018).

Bezogen auf das Jahr 2021 läge die Minderungswirkung bei insgesamt 6,0 Millionen Tonnen CO2-Äquivalente (Tempo 120 auf Autobahnen) beziehungsweise 7,3 Millionen Tonnen CO2-Äquivalente (Tempo 120 auf Autobahnen und Tempo 80 auf Außerortsstraßen) https://perma.cc/99DK-FZXP

Tempolimit: Für Klimaschutz und Sicherheit

PS: 60 mph = 97km/h

More about road fatalities related to speed on https://www.tgoop.com/CarAccidentsFacts/112

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