Mobility Some principles about traffic planning Katharina George
November 2017
Before planning and constructing new streets the following questions has to be answered:
Some questions
What is the current problem? What do we want to achieve? Which alternatives are there?
Who benefits? What are the environmental impacts?
Transportation Planning in Cities is not highway engineering !
Some principles
All traffic modes have to be considered on a fair basis with an equitable distribution of space and rights. Environmental concerns are as serious as traffic problems. Car traffic dominates our cities and influences the quality of life in a negative way.
Pure Pedestrian Roads Does closing up roads for car traffic improve the traffic situation in general ?
Pedestrian Road Gaping emptiness and monotony at day times due to mono-functionality
Closing Roads causes: problems for shops, clients and local residents
Closing Roads causes: Relocation of traffic to other roads and spoiling heritage
One way roads Do they ease the traffic flow?
Causes longer trips due to detours, which means in sum more pollution.
One way roads
Inconvenient for local residents. Seduces to drive faster instead of slowing down because there is no oncoming traffic.
Which alternatives do we have? European practices
All traffic modes are using the same space
Shared Space
The speed is reduced to 10 – 30 km/h Only on some selected areas
Construction works are needed
Usually a complex project All traffic modes are using the same space The speed is reduced to 10 km/h
Traffic-calmed zones
Only on some selected areas or streets
Pavement is made new in a special way
30km/h – making streets livable! For a better quality of life in European cities
Tempo 30km/h
ď‚– 160 cities in 15 European countries have already implemented wide areas with 30 km/h (20mph) ď‚– European network of 67 European NGOs organized a European Citizen's Initiative (ECI) "30kmh - making streets livable"
Speed limits of 30km/h (20mph) : Save lives! The number and the severity of accidents is reduced considerably! Helps combat climate change, as a lower speed means less CO² emissions!
Advantages
Improves air quality, as far fewer exhaust gases are emitted, making an important contribution to public health. Reduces traffic noise by up to 40% (3 dbA), which makes a real difference. Ensures a more constant traffic flow with less congestion. Makes cycling, walking and using the bus or train much more enjoyable
Safety
30km/h (20mph) :
30km/h (20mph) :
On secondary roads in the whole City area or in special neighborhoods
Highways can be included or on 50 km/h No bike lanes are needed
Rules
Traffic calming (physical or psychological) measures can support Controlling is needed !!!
Gaining Public Space
Reduced road width: A maximum roadway width of 5.5 m within a tempo of 30 zones is usable. All roads wider than 5.5 m can be narrowed accordingly. It is not needed to change the construction. Other measures can be taken by means of: Marking of parking strips Punctual constrictions Plants
Now
Highway along the river
Future
Integrated MobilityConcept needed !
Thanks for your attention! link to: http://en.30kmh.eu/