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121Published 1987“...Transportation Research Board, National Research Council,...”
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122Published 1987“...Transportation Research Board, National Research Council,...”
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124Published 1987“...Transportation Research Board, National Research Council,...”
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125Published 1987“...Transportation Research Board, National Research Council,...”
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126Published 1987“...Transportation Research Board, National Research Council,...”
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127Published 1988“...Transportation Research Board, National Research Council,...”
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128Published 1988“...Transportation Research Board, National Research Council,...”
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129Published 1989“...Transportation Research Board, National Research Council,...”
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131Published 1989“...Transportation Research Board, National Research Council,...”
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132Published 1989“...Transportaion Research Board, National Research Council,...”
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133Published 1988“...Transportation Research Board, National Research Council,...”
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134Published 1990“...Transportation Research Board, National Research Council,...”
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135Published 1988“...Transportation Research Board, National Research Council,...”
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136Published 1989“...Transportation Research Board, National Research Council,...”
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137Published 1989“...National Research Council, Transportation Research Board,...”
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138Published 1990“...Transportation Research Board, National Research Council,...”
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139Published 1988“...Transportation Research Board, National Research Council,...”
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140Published 1988“...Transportation Research Board, National Research Council,...”
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