 The planning system is critical to the viability and operation of GA aerodromes . With many cities lacking scheduled air transport services between them , and with GA access to commercial airports becoming increasingly difficult and expensive , a viable network of aerodromes supporting GA air transport operations is regarded as an important national issue . However , there is no unified national planning policy specific to GA aerodromes , and planning decisions relating to these are based on local issues that are not required to consider the national impact . Because aircraft are excluded from noise control legislation , the only recourse for people affected by aircraft noise is through the planning process , and this issue is the principal factor on which the majority of planning decisions relating to GA land use are made . GA is a specialist subject often unfamiliar to Local Planning Authorities , and most planning decisions relating to GA either refuse permission , or grant it with restrictive conditions . Little Gransden is just one example of a GA airfield required to comply with planning restrictions on the number of movements permitted , thereby inhibiting further development . Such restrictions , if poorly conceived , can make GA operations unviable or even unsafe . 
 The planning system <a href='drop_aux' title='1'><mark>is</mark></a>critical to the viability and operation of GA aerodromes . With many cities lacking scheduled air transport services between them , and with GA access to commercial airports becoming increasingly difficult and expensive , a viable network of aerodromes supporting GA air transport operations is regarded as an important national issue . However , <a href='dey_it' title='2'><mark>there</mark></a> is no unified national planning policy specific to GA aerodromes , and planning decisions relating to these are based on local issues <a href='null_relcl' title='3'><mark>that</mark></a>are not required to consider the national impact . Because aircraft are excluded from noise control legislation , the only recourse for people affected by aircraft noise is through the planning process , and this issue <a href='drop_aux' title='4'><mark>is</mark></a>the principal factor on which the majority of planning decisions relating to GA land use are made . GA <a href='drop_aux' title='5'><mark>is</mark></a>a specialist subject often unfamiliar to Local Planning Authorities , and most planning decisions relating to GA either refuse permission , or grant it with restrictive conditions . Little Gransden <a href='drop_aux' title='6'><mark>is</mark></a>just one example of a GA airfield required to comply with planning restrictions on the number of movements permitted , thereby inhibiting further development . Such restrictions , if poorly conceived , can make GA operations unviable or even unsafe . 
The plannin system critical to the viability and operation of GA aerodromes . With many cities lacking scheduled air transport services between em , and with GA access to commercial airports becoming increasingly difficult and expensive , a viable network of aerodromes supporting GA air transport operations is regarded as an important national issue . However , it ain't no unified national pplanninpolicy specific to GA aerodromes , and planning decisions relating to dese r based on local issues ain't required to consider the national impact . Because aircraft are excluded from noise control legislation , da only recourse for people affected by aircraft noise is through tdaplanning process , and dis issue the principal factor on which the majority of planning decisions relating to GA land use are made . GA a specialist subject often unfamiliar to Local Planning Authorities , and most planning decisions relating to GA either refuse permission , or grant it with restrictive conditions . lil Gransden jus one example of a GA airfield required to comply wit planning restrictions on the number of movements permitted , thereby inhibiting further development . Such restrictions , if poorly conceived , can make GA operations unviable or even unsafe .