Mass Production: From Ford to Toyota

How Henry Ford's moving assembly line revolutionised manufacturing, and how Toyota's production system later improved on it.

Modern manufacturing was shaped by two major revolutions in how factories are organised.

Ford’s assembly line

In 1913, Henry Ford introduced the moving assembly line at his Highland Park plant in Michigan to build the Model T car. Instead of workers moving around a stationary car, the car moved past workers, each performing a specific task.

The results were dramatic:

Time to assemble a Model T fell from over 12 hours to around 90 minutes.
The price of the Model T fell substantially, making cars affordable for many American families.
Ford sold millions of Model Ts.

This mass production relied on standardised parts, specialised tasks and high volumes.

The $5 day

In 1914, Ford doubled wages for many workers to 5 dollars a day. Assembly line work was repetitive and exhausting, and turnover was high. Higher pay reduced turnover and absenteeism. Economists see this as an early example of efficiency wages: paying above market rates to improve productivity and loyalty.

Toyota’s system

After the Second World War, Toyota in Japan developed the Toyota Production System, led by engineer Taiichi Ohno. Key ideas included:

Just-in-time production, keeping inventory low.
Jidoka: machines and workers stop production when a problem is detected, so defects are fixed immediately.
Kaizen: continuous improvement through small changes suggested by workers.
Flexibility to produce different models on the same line.

Toyota’s methods, later called lean manufacturing, helped Japanese car makers achieve high quality and efficiency and were copied worldwide.

India’s car industry

India’s modern car industry was transformed in the 1980s when Maruti Udyog, a joint venture between the Indian government and Japan’s Suzuki, launched the Maruti 800 in 1983, bringing Japanese production methods to India.

Stopping the line

In a traditional factory, a worker who spots a defect might let the car continue down the line to be fixed later. In Toyota's system, any worker can stop the line to fix the problem immediately. This seems slower, but it prevents defects from multiplying and improves quality over time.

Thinking mass production means low quality

Mass production made goods affordable, and later methods like Toyota's showed that high volumes can go with high quality through continuous improvement.

Key takeaways

Ford's 1913 moving assembly line cut Model T assembly time from over 12 hours to around 90 minutes.
Ford's 1914 $5 day is an early example of efficiency wages.
Toyota's system introduced just-in-time, jidoka and kaizen, known as lean manufacturing.
Maruti Suzuki brought Japanese methods to India from 1983.