One respondent suggested that the units and certificates should be amended further to create a special unit which excludes traffic light control from the other traffic management methods.
Awgrymodd un ymatebydd y dylid diwygio’r unedau a’r tystysgrifau ymhellach i greu uned arbennig sy’n eithrio rheoli goleuadau traffig o ddulliau rheoli traffig eraill.