SnowFlake Expansion

Alvin Nieves RosarioValerie Maier-

SperedelozziDaniel Berman

Agenda

•SnowFlake Project•Previous Projects•Studied Areas•Statistics– Vehicles– Roads– Fatalities

•Future work

SnowFlake Expansion

Why compare data?

•Look for similarities and differences in safety policies•Learn from past experiences•Adopt policies from each other

Previous Projects

SUNflower

•Developed in Europe•Compare three countries– Sweden– United Kingdom– Netherlands

SUNflower+6

•Included six countries

•Central– Czech Republic– Hungary– Slovenia

•Southern– Spain– Greece– Portugal

SnowFlake

•Comparison between a US state and a Europe country– Rhode Island– Czech Republic

SnowFlake expansion areas

SnowFlake expansion areas

CT MA TX RI PRPopulation (million) 3.502 6.45023.904 1.058 3.942

Area (sq km)

14,356

23,934

687,61

9 2,944 9,104 Density (population/sq km) 244 269 35 359 433GDP per capita(US dollar)

58,247

52,405

44,594

43,485

19,747

Road infrastructure

Units: thousands of kmCT MA TX RI PR

Roads & Motorways 9,866

12,723

353,48

0 2,011 5,007 Motorways 69 146 3,497 34 50

Roads outside urban areas 2,817 3,976

113,41

7 614 1,243

Local roads 6,980 8,601

236,56

6 1,364 3,715

Roads inside urban areas

24,094

44,728

133,90

9 8,368

20,832

Total length

33,960

57,452

487,38

9

10,379

25,839 Road Infrastructure Density 9.71 8.94 21.65 9.71 6.59

Vehicle fleet

First fatality recorded

•In 1869, the first road accident fatality occurred in a small town in the Irish Midlands.•In 1896, the first road fatality occurred in England.•In the US, in 1899 the first road fatality occurred in New York.

Fatalities

•Measure fatalities for different areas•Types of measurements– Per vehicle miles traveled (VMT)– Per capita– Per motor vehicles– Per area– Per road infrastructure– Total lane length

Fatalities

Fatalities

Fatalities

Fatalities

Fatalities

Fatalities

Fatalities

Road safety features

•Measure specific road safety aspect•Types of road safety features– Age groups– Drinking and driving– Motorcycles– Seatbelt use– Road users

Road safety features

Road safety features

Road safety features

New England

New England

  CT MA RI NEFatality Rate 0.89 0.80 0.95 0.84Health Risk 8.17 6.87 7.50 7.34Per road infrastructure 8.41 7.68 7.73 7.93Per area 19.90 18.44 27.26 19.58Per VMT 0.93 0.81 0.95 0.90

New England

New England

New England

New England

New England

Future work

•Update current areas•Expand to more areas– States– Countries•Look for factors that ultimately influence road safety in these and other areas

Acknowledgements•URITC•FHWA•Dwight Eisenhower Fellowship Program

•Valerie Maier-Speredelozzi•Daniel Berman•Alberto Figueroa

Questions