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Front Matter (R1-R10)

Executive Summary (1-15)

1 Introduction (16-26)

2 Theory and Experience (27-38)

3 Possible Effects (39-57)

4 Technical and Political Feasibility (58-80)

5 Design, Evaluation, and Research (81-96)

6 Summary (97-103)

Appendix A: Traffic Congestion (104-116)

Appendix B: Theory, Experience, and Estimated Effects (117-139)

Study Committee Biographical Information (140-146)