Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254 (1998)

Chapter: Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship

Previous Chapter: Appendix A: Trade-Off Decisions in Selecting Driving Speeds
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 221
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 222
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 223
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 224
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 225
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 226
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 227
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 228
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 229
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 230
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 231
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 232
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 233
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 234
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 235
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 236
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 237
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 238
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 239
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 240
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 241
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 242
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 243
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 244
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 245
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 246
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 247
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 248
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 249
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 250
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 251
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 252
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 253
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 254
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 255
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 256
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 257
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 258
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 259
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 260
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 261
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 262
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 263
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 264
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 265
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 266
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 267
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 268
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 269
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 270
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 271
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 272
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 273
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 274
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 275
Suggested Citation: "Appendix B: Speed and Crashes: A Controlversial Topic and an Elusive Relationship." Transportation Research Board. 1998. Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits -- Special Report 254. Washington, DC: The National Academies Press. doi: 10.17226/11387.
Page 276
Next Chapter: Appendix C: Effect of Speed Limits on Speed Distributions and Highway Safety
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