Title
AN IMPROVED TRAFFIC LIGHTING SYSTEM: AN IMPROVED TRAFFIC LIGHTING SYSTEM FOR THE GRA JUNCTION, ABA ?PORTHARCOURT EXPRESSWAY, NIG,Used
Delivery time: 8-12 business days (International)
We have all heard drivers complain of the annoyance of traffic signs and signals, but we must realize that the regulations provided by these signals are absolutely necessary if today's traffic continues to move with safety. However, the increasing population has led to several inconsistencies of traffic lights. This work presents the design and construction of an improved digital lighting system for the Government Reserved Area (G.R.A.) junction, Aba ? Port Harcourt expressway, Nigeria based on a principle of generating electrical pulses that are counted and decoded with Johnson counters. The CD4017 counter and decoder forms the heart of the circuitry which is driven by pulses from a signal generator (NE555).Based on the traffic flow data collected from the junction, timing was allocated to each of the roads to show improvisation. This timing was assigned to pulses from the synchronous counters. Radiant light and heat from the sun is harnessed and used to charge a 6v battery using photovoltaic cells. This powers the circuitry in the event of power failure.
By changing our most important processes and
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.
Secure Payment
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.