The effect of an advisory speed signal on motorway traffic speeds
| Hlavní autor: | |
|---|---|
| Korporativní autor: | |
| Médium: | Kniha | 
| Jazyk: | English | 
| Vydáno: | Crowthorne, Berkshire
          Highway Traffic Division, Traffic Engineering Dept., Transport and Road Research Laboratory
    
        1980. | 
| Témata: |