That would not fly in the San Francisco cable car system. The cable has to have uniform slip friction through the pinching grip of a cable car.
When the cable breaks, a field splice is made on the spot 20 or more feet long, and with no cars attached the splice is rotated into the powerhouse where a permanent splice is made overnight.  That splice is, I believe, on the order of hundreds of feet long.
	
	
		
			
				
					
						
							
						
					
				
			
			
				
				How Cable Cars Work - cable, wire rope,aerial trams, wire suspension bridge,Comstock Lode, manufacture wire rope,sisal rope center,hemp center
				
					
						
							 
						
					
					www.cablecarmuseum.org
				
 
			 
		 
	 
One of the powerhouse pulleys is on a long track and is moved out to take up strech in the cable  and moved back when a new cable is fitted.