Possible Clues:

• Like cars in heavy traffic
• Extremely touching?
• Forming a line, as banquet tables
• Lengthwise and contiguous
• Engineering don't need the whole length
• Full of ebb and flow, with scrap by goal
• Put a stop to Waterloo! Is this how the king and queen sit down to dinner?
• Put a stop to Waterloo! Is this how king and queen sit down to lunch?
• In Row D?
• In a contiguous line