my @s = ( 
    '129-129A & B-131 NORTH AV', 
    '129-129A + B-131 NORTH AV', 
    '129-129A / B-131 NORTH AV', 
    '129-129A - B-131 NORTH AV',
);
print join'|', grep $_, split '(?:\s+([&/+-])\s+)|\s+', $_ for @s;

129-129A|&|B-131|NORTH|AV
129-129A|+|B-131|NORTH|AV
129-129A|/|B-131|NORTH|AV
129-129A|-|B-131|NORTH|AV