TY  - RPRT
A1  - Schrauth, Philipp
T1  - The Causal Effect of Cycling Infrastructure on Traffic and Accidents
BT  - Evidence from Pop-up Bike Lanes in Berlin
T2  - CEPA Discussion Papers
N2  - This paper analyzes the effect of new bicycle lanes on traffic volume, congestion, and accidents. Crucially, the new bike lanes replace existing car lanes thereby reducing available space for motorized traffic. In order to obtain causal estimates, I exploit the quasi-random timing and location of the newly built cycle lanes. Using an event study design, a two-way fixed effects model and the synthetic control group method on geo-coded data, I show that the construction of pop-up bike lanes significantly reduced average car speed by 8 to 12 percentage points (p.p.) and up to 16 p.p. in peak traffic hours. In contrast, the results for car volume are modest, while the data does not allow for a conclusive judgment of accidents.
T3  - CEPA Discussion Papers - 48 
KW  - congestion
KW  - urban
KW  - traffic
KW  - environment
KW  - cycling
KW  - health
KW  - COVID-19
KW  - accidents
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-553359
SN  - 2628-653X
IS  - 48
ER  - 
TY  - RPRT
A1  - Gohl, Niklas
A1  - Schrauth, Philipp
T1  - Ticket to Paradise?
BT  - The Effect of a Public Transport Subsidy on Air Quality
T2  - CEPA Discussion Papers
N2  - This paper provides novel evidence on the impact of public transport subsidies on air pollution. We obtain causal estimates by leveraging a unique policy intervention in Germany that temporarily reduced nationwide prices for regional public transport to a monthly flat rate price of 9 Euros. Us-ing DiD estimation strategies on air pollutant data, we show that this intervention causally reduced a benchmark air pollution index by more than six percent. Our results illustrate that public transport subsidies – especially in the context of spatially constrained cities – offer a viable alterna-tive for policymakers and city planers to improve air quality, which has been shown to crucially affect health outcomes.
T3  - CEPA Discussion Papers - 50 
KW  - air pollution
KW  - public transport
KW  - transport subsidies
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-558466
SN  - 2628-653X
IS  - 50
ER  - 
TY  - RPRT
A1  - Borck, Rainald
A1  - Schrauth, Philipp
T1  - Population density and urban air quality
T2  - CEPA Discussion Papers
N2  - We use panel data from Germany to analyze the effect of population density on urban air pollution (nitrogen oxides, particulate matter and ozone). To address unobserved heterogeneity and omitted variables, we present long difference/fixed effects estimates and instrumental variables estimates, using historical population and soil quality as instruments. Our preferred estimates imply that a one-standard deviation increase in population density increases air pollution by 3-12%.
T3  - CEPA Discussion Papers - 8 
KW  - population density
KW  - air pollution
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-427719
SN  - 2628-653X
IS  - 8
ER  - 
TY  - RPRT
A1  - Borck, Rainald
A1  - Schrauth, Philipp
T1  - Urban pollution
BT  - A global perspective
T2  - CEPA Discussion Papers
N2  - We use worldwide satellite data to analyse how population size and density affect urban pollution. We find that density significantly increases pollution exposure. Looking only at urban areas, we find that population size affects exposure more than density. Moreover, the effect is driven mostly by population commuting to core cities rather than the core city population itself. We analyse heterogeneity by geography and income levels. By and large, the influence of population on pollution is greatest in Asia and middle-income countries. A counterfactual simulation shows that PM2.5 exposure would fall by up to 36% and NO2 exposure up to 53% if within countries population size were equalized across all cities.
T3  - CEPA Discussion Papers - 60 
KW  - population density
KW  - air pollution
KW  - gridded data
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-572049
SN  - 2628-653X
IS  - 60
ER  -